Climate Debate Daily

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Calls to action

Essays and research supporting the idea that global warming poses a clear threat to humanity, that it is largely caused by human activity, and that solutions to the problems of climate change lie within human reach.

The think tanks, lobbyists and commentators who oppose the IPCC have a long history of turning fringe science into received wisdom on the political right ...continue »

The $100 million DSCOVR spacecraft was designed to measure Earth's energy budget and tell us about climate change once and for all. Why's it been mothballed? ...continue »

Skeptics claim that if the IPCC were right then global temps could not remain flat or decrease for a few years while CO2 levels keep going up. This is patently false ...continue »

In the IPCC's corner we have Tapio Schneider, a climate scientist, offering a succinct overview of the science behind human-induced climate change ...continue »

Will global warming take a brief break over the next few years? The climate scientists who run RealClimate are prepared to bet serious money that it won't ...continue »

Rising CO2 levels can threaten life in ways totally unrelated to global warming. For example, consider the fate of koalas, trying to get by on a poor diet of gum-tree leaves ...continue »

Global warming's effects are starkly evident in Siberia. Billions of tons of rotting permafrost are converting to methane, and Lake Baikal is warming rapidly ...Methane » ...Lake Baikal »

A recent Nature article that supposedly predicts a decade of global cooling has been widely misreported. Its predictions are consistent with very rapid warming over the next ten years ...continue »

At least 45 scientists are demanding that their names be struck from the list of "co-authors" of a skeptical document published by the Heartland Institute ...continue » [more]

Nigel Lawson makes an unlikely Dr Strangelove, but he has learned to stop worrying and love a warmer world. The arguments he deploys are, however, less than compelling ...continue »

Those who imagine it's impracticable to replace coal-fired power with clean energy need to acquaint themselves with the basic facts about concentrated solar ...continue »

Warming allows pine beetles to thrive. Forests ravaged by the beetle release hundreds of megatonnes of CO2. More warming ensues. And on it goes ...continue »

Tapping just 5 percent of the USA's geothermal wealth would generate enough electricity for 260 million people. A government energy lab says it's doable ...continue »

Most Arctic sea ice is now young, thin and vulnerable to rapid melting. If winds are as warm as in 2007 then the North Pole could be ice free this summer ...continue » [graph]

The plant hardiness zone map for the USA, drawn in 1990, is now out of date. A new map shows marked warming and rapid northward movement of the zones ...continue »

A survey of EPA scientists has revealed rampant political interference in their work, along with political barriers to the free communication of scientific results ...continue » [Full Report]

Last month was the second hottest March ever recorded, and average land surface temperatures over the globe were the highest ever recorded in March ...continue »

Skeptics theorize that cosmic rays seed clouds and that the sun controls climate by modulating the cosmic ray flux. More new evidence contradicts this theory ...continue »

Samuel Thernstrom, ex-Bush official and press director at a conservative think-tank, is disturbed by staggering omissions in Bush's climate-change speech ...continue »

If the US is fighting in the war on global warming it's fighting on the wrong side. But with a few policies that wouldn't break the bank it could turn that around ...continue »

A useful analogy: imagine it’s 2025, and you’ve got a 486-pound ex-president being wheeled in to accept congratulations for his excellent physical fitness program ...continue »

The Greenland ice sheet is a holdover of the most recent ice age, stranded out of time, a relic of conditions that no longer apply. And relics are fragile ...continue » [more]

Ever heard of cars powered by ultracapacitors? It is just possible that this technology might be about to change the world as we know it ...continue »

It behooves skeptics who trumpeted the low global temps of January to attach equal significance to the temps of March. La Niña notwithstanding, March was hot ...continue » [more]

Concentrated solar and wind power are technologies that could easily meet the USA's energy needs if the government had the foresight to act ...concentrated solar » and wind »

Hundreds of millions of people are facing the prospect of starvation as a food crisis unfolds with frightening speed. Global warming is one of the causes ...continue » [more]

If you're worried that stopping global warming will wreck the economy, you're looking at this all wrong. It will create an historic economic opportunity ...continue » [more]

New technology allows floating wind turbines to be moored in waters up to 1000 feet deep, so far out to sea that the visual impact from shore is nil ...continue »

The temperature predictions made by the IPCC in 1995 and 2001 have been borne out very well by what has actually been measured in the years since ...continue »

The paradox, says top economist Jeffrey Sachs, is that we are on a path to doing huge damage to ourselves, yet the cost of finding an alternative is extraordinarily modest ...continue »

In a brand-new slideshow Al Gore presents evidence that the pace of climate change may be even worse than scientists were recently predicting ...continue »

Spain's wind turbines now produce enough wattage to power Madrid, Barcelona, Seville, Valencia, Toledo, Cordoba, Granada, Zaragoza, and Bilbao combined ...continue »

A new study argues that climate change should be tackled with a government-financed alternative energy quest, not with a carbon cap treaty. How about all of the above? ...continue »

The shocking incapacity of self-interested humans to respond rationally to climate change has been exposed by an experiment conducted at the Max Planck Institute ...continue »

Scientists have produced further compelling evidence showing that modern-day climate change is not caused by changes in the Sun's activity or by cosmic rays ...continue »

Exposed boulders in a remote and desolate corner of Western Antarctica harbor a warning that the region's glaciers could collapse and drive up sea levels by 1 meter ...continue »

Why spend billions mitigating CO2 emissions when our best climate models are very unreliable? The reasons are absolutely compelling, as Stephen Schneider explains ...continue »

A giant, thousand-ton turbine being attached to the bottom of a loch in Northern Ireland is the first in the world to harvest energy from the tides ...continue »

India is installing 10ft barbed-wire barriers along its entire 2000 mile border with Bangladesh – to keep out an anticipated torrent of climate refugees ...continue »

Unlike sea ice in the Arctic, the way climate change is tinkering with the natural timing of day-to-day life is concrete and local. People can experience it with all five senses ...continue »

The sun's alone among potential sources of renewable energy in being able to meet our needs. It can meet them many times over. So why the pathetic level of investment? ...continue »

Black soot causes respiratory disease and has a much bigger role in global warming than previously thought. Mitigation is easy and the payoff will be large and quick ...continue »

Another ice shelf on the Antarctic Peninsula is on the verge of collapse. It is larger and farther south than any of the shelves that have been lost to date ...continue »

The true lesson of Thomas Malthus isn't that the world is doomed, but that preservation of human life requires analysis and then tough action ...continue »

Artificial reservoirs built since the 1950s hold back enough water to make sea levels go up by 3cm. Even so, sea levels are going up at a fast clip ...continue »

The medieval warm period is often cited as proof that warming can be a benefit. But it was a time when calamitous droughts wrecked havoc around the globe ...continue »

Skeptics who claim that global warming has stalled might like to try having a look at the graphs some time. The trends could hardly be more stark ...continue »

Unless we bring CO2 down to 1988 levels the Earth will soon be quite unlike the planet on which civilization developed. So says NASA's Jim Hansen ...continue » [report here]

Despite a cold winter, unusual currents have depleted the Arctic sea of much of its old, thick ice. Conditions are ripe for another major melt this summer ...continue »

Skeptics often accuse climate modellers of investing too much faith in arcane computer code. But the modellers are more aware than anyone of the models' limits ...continue »

All around the world the glaciers that store water for billions of people are retreating at an ever increasing rate under the influence of climate change ...continue » (More here.)

Australia's water-starved farms and cavernous empty grain silos are set to affect prices of food around the globe. It's Australia's worst drought on record ...continue »

Market forces will swiftly unleash the private capital and innovation needed to beat climate change if the US government puts a cap-and-trade system in place ...continue »

Russell Seitz is a climate skeptic who despairingly admits that barely any of the prominent figures on his own side are competent in the field of climate science ...continue »

The really scary thing about a document warning of humanity's imminent peril that was signed by more than half of all living Nobel prize winners is that the media ignored it ...continue »

Skeptics about global warming are strangely unskeptical of the theory that climate is controlled by cosmic rays. Never mind that it's riddled with fatal flaws ...continue » (More here.) (But see this.)

Critics of carbon cap-and-trade schemes take note: they worked for sulphur pollution and solved the problem of acid rain at a quarter of the expected cost ...continue »

The skeptics' claim that scientists were mainly worried about global cooling in the 1970s has been thoroughly debunked by a survey of that era's literature ...continue » (More here.)

Skeptics often claim that mitigating CO2 does not make good economic sense. A major new report from the OECD blows that argument out of the water ...continue » [report summary]

The skeptics' International Climate Change Conference was all about science, and yet it would appear that only 19 scientists showed up ...continue »

World coal reserves may be grossly overstated. If so, we are in for a severe energy crisis, and have yet another reason to switch to renewable energy without delay ...continue »

Solar thermal is low-tech, relatively cheap, and keeps producing power when the sun goes down. Installed capacity is set to leap by a factor of 60 within five years ...continue »

The enormous body of evidence pointing to a warming world with disrupted weather, less ice, and rising seas is not refuted by the current cold spell...continue » ... more

The claim by skeptics that the media have ignored a dump of snow on Kilimanjaro exemplifies the central weakness of their case: they confuse climate with weather ...continue »

Continuing scientific uncertainty about the pace of climate change is a worry, and skeptics who doubt the climatologists’ models should be the most worried of all...continue »

Deniers continue to insist there no consensus on global warming. But consensus is not the issue where you have well-tested science and real-world evidence ...continue »

Wait, what? A business magazine and a mostly right-wing website took a scientist's statements out of context in the service of a political agenda? Stop the presses! ...continue » [part 2]

Climate science, like the seafloor, is sedimentary. It is the product of an immense, patient and painstaking process of collecting and sifting data. Consider the ANDRILL project ...continue »

"I have the same feelings about wind," says oilman Boone Pickens, "as I had about the best oil field I ever found." He's planning to build the biggest wind farm in the world ...continue »

The atmosphere doesn't quite work like the panes of glass on a greenhouse, and therein lies the flaw in a common skeptical argument ...continue » [part 2]

55 million years ago a massive release of carbon caused extreme global warming and severely altered the chemistry of the oceans. This event holds clues to our future ...continue »

The great global cooling scare of the 70's is a favorite topic for climate skeptics. A new survey of the 70's scientific literature shows that the story is a myth ...continue »

Sausages may save us from global warming – really big sausages pumped full of liquid CO2 and left to sit forever on the ocean floor ...continue »

Want to know how to debunk the skeptics' arguments? Colby Beck's point-by-point rebuttal of climate skepticism has been endorsed by top climate scientists ...continue »

The carbon footprint of apples imported to New York from New Zealand can be less than for apples from fifty miles away. How can people make the right decisions? The answer is ... continue »

Energy-saving measures that could be done quickly and at minimal cost would cut CO2 emissions by half what's required and yield a net profit to the global economy ... continue »

Parts of Antarctica are getting colder, ergo global warming theory is false. Great argument, except it was known long ago that the theory predicts a cold Antarctica ... continue »

Climate change is largely to blame for a 50/50 chance of dams on the Colorado that supply water to the South West being dry within 13 years ...continue »

Here's an idea: use nuclear power to convert CO2 that's been sucked from the air into fuel for cars. The clever people at Los Alamos think it can work ...continue » (More here and here.)

With peak oil looming, Britain has no plan at all and the EU's energy plan relies on unsustainable biofuels. Reduced consumption, anyone? ...continue »

Google aims to set up a gigawatt of clean generating capacity that's cheaper than coal "within years, not decades." It's Bill Weihl's job to make it happen ...continue »

In a YouTube clip Prof. Naomi Oreskes reveals the ugly links between the George C. Marshall Institute, defenders of the tobacco industry and global warming denial ...continue »

NASA's Jim Hansen to Chancellor Merkel: "Agreement to phase out coal use except where the CO2 is captured is 80% of the solution to the global warming crisis" ...continue »

The Eocene and Cretaceous are tugging at our sleeve, whispering "There are things going on with climate you don't begin to understand. Proceed with caution" ...continue »

Despite the Pentagon's recognition that global warming is a security threat, the US spends $88 on defense for every dollar on climate change ...continue »

A major new study by an international team of climate experts has identified nine calamitous "tipping points" that could be crossed before the end of the century ...continue »

The USA's bill for imported oil has gone from $45 billion in 1998 to about $400 billion in 2007. Its oil addiction is largely responsible for the looming recession ...continue » (And see this.)

The western USA is drying up. Its mountain snow-pack is disappearing. Why? A new study in Science points the finger unambiguously at greenhouse gases ...continue »

A study published in Nature shows that when water in the hurricane breeding grounds of the Atlantic warms one degree, overall hurricane activity jumps by half ...continue »

Spring has sprung and England's abloom with daffodils, snowdrops, and crocuses. Would be nice, except it's still the middle of winter ...continue »

A car wastes a lot of energy as heat out its tailpipe. Capture just some of that with thermoelectrics, and straight away you save 5% to 10% of the fuel ...continue »

When wind turbines get too big the constant up-down stretching of the blades by gravity destroys them. A strange new breed of turbine solves the problem ...continue »

The dead vegetation being revealed by retreating Baffin Island ice shows just how unprecedented the recent warming is. It was under ice long before the medieval warm period ...continue » (More here.)

There is a politically and economically feasible way to achieve sharp CO2 cuts: not through regulation, but through massive public investment in clean energy research...continue »

Meat production is so energy inefficient that if Americans ate just 20% less meat it would be as if they each switched from driving a Camry to a Prius...continue »

Global warming is best tackled by the voluntary efforts of big business, says President Bush. A survey just out shows that most big businesses aren't interested...continue »

Problem: to substantially reduce the 5% or more of global CO2 emissions produced by container ships plying the seas. Solution: bring back sails in the form of giant kites...continue »

Warmer seas and a record hurricane season in 2005 have devastated more than half of the coral reefs in the Caribbean...continue »

Greenhouse gas emissions and global warming are set to have a calamitous impact on bird life in Great Britain, a new RSPB report shows...continue »

The U.S. coal industry is spending $35 million on election ads at a time when fifty new coal-fired power stations are on hold due to climate concerns...continue » ...more

The Chinese know global warming will mean famine and social disorder. That is why they may be much more decisive than democracies in facing the problem...continue »

Climate change deniers strike a blow against human solidarity that can be compared with the 19th-century racist denial of the need to abolish slavery...continue »

2007 was the warmest year on record for the earth's land areas, say federal scientists at NOAA's National Climatic Data Center...continue »

Climatologists at the NASA Goddard Institute for Space Studies have found that 2007 tied with 1998 for the earth's second warmest year in a century...continue »

Skeptics claim that the IPCC's predictions are unconfirmed and that global warming has stopped. They simply aren't reading the graphs the right way...continue »

In the angry debate over global warming the skeptics tend to lose sight of certain facts that cannot be reasonably doubted. Andrew Revkin gives a list...continue »

A new study shows that net ice loss from Western Antarctica has increased from 112 billion tonnes in 1996 to 196 billion tonnes in 2006, an increase of 75%...continue » ...more

Which of Greenland or Western Antarctica poses the biggest threat? Scientists are split. But it's agreed that playing two games of high-stakes poker at once isn't clever...continue »

Even a massive, all-out effort to slash global CO2 emissions 80% by 2020 would have an annual price-tag of only 16% of the global military budget...continue »

As Arctic sea ice has diminished year by year, so Antarctic sea ice has expanded. But this is broadly consistent with what the climate models predict...continue »

Research just out demonstrates that biofuel derived from switchgrass grown on marginal farmland has great potential to cut net CO2 emissions...continue »

The warming situation in Greenland and the rest of the Arctic is "definitely far more serious than anyone would have thought five years ago"...continue »

"The trend in respect of weather extremes shows that climate change is already taking effect and that more such extremes are to be expected in the future"...continue »

Against expectations shorter winters appear to be weakening the ability of frozen northern forests to soak up carbon...continue »

"The fact that 2008 is forecast to be cooler than any of the last seven years does not mean that global warming has gone away"...continue »

For less than the annual cost of its Farm Price Support Program the US could get a third of its energy from the sun and slash emissions by 2050...continue »

We are in for a minimum of 90 more years of warming no matter how many Hummers are junked in favor of Priuses. Let's adapt...continue »

Westerners consume 32 times as much as people from undeveloped states. The Earth can't support such consumption in China and India... continue »

If solar power were as cheap as coal, CO2 mitigation would be easy. Now a new company claims to be making very cheap solar cells...continue » more »

Chikungunya, a relative of dengue fever, is normally found in the Indian Ocean region. But now mosquitoes that need warmth have brought the disease to Italy...continue »

Global warming is partly to blame for the greater intensity and frequency of massive wildfires in the American West...continue »

Rising temperatures will set the stage for more severe storms in the U.S., doubling the likelihood of extreme winds, hail, floods, and tornados by 2110...continue »

New research out of Greenland suggests that sea levels may rise much higher and sooner than even the most pessimistic climate forecasts predict...continue »

2007 was the seventh warmest year since record-keeping began, the IPCC says, and made for brutal weather...continue »

Convincing evidence that Earth’s climate is undergoing alarming changes has accumulated rapidly in recent years, especially during the past three decades...continue »

Suckered again. The Bali deal is worse than Kyoto, says George Monbiot, and America will keep on wrecking climate talks as long as oil and gas fund its political system...continue »

Rapid global CO2 warming took place 55 million years ago. This period of climate change gives the best fossil analogue to current and future greenhouse warming...continue »

This latest Arctic sea ice news is a powerful indicator that we may have passed the point of no return, with potential impacts on societies around the world...continue »

The U.S. could shave 28% off the amount of greenhouse gases it emits at modest cost and with only small technology innovations, says a new report...continue »

Almost 60% of the Amazon’s forests could be wiped out or severely damaged by 2030 as a result of climate change and deforestation, according to a new WWF report...continue »

The world’s coral reefs are in danger of being killed off by rising levels of greenhouse gases, with 98% of the world’s reef habitats likely be too acidic for corals by 2050...continue »

Wine is the canary in the climate-change coal mine. Even slight changes can wreak havoc on high-quality wine, making it particularly vulnerable to global warming...continue »

2007 is set to be the fifth hottest year on record, and might well have broken the records had it not been for the timely arrival of La Nina...continue »

Cans and bottles of carbonated drinks are still no friends of the environment – including the climate...continue »

A glacier on the Tibetan plateau is shrinking, with a threat to the future of nearby villagers. They may blame the gods, but global warming is the issue...continue »

Scientists examined five different measures of the width of the tropical belt, and found it expanded by between 2 and 4.8 degrees latitude since 1979...continue »

Climate change skeptics tend to agree that business as usual CO2 emissions are nothing to fret about. But beyond this, their views are not always consistent...continue »

Holocaust deniers argue over history. Their damage is in terms of racism and relations between peoples. Climate change deniers pose a greater danger...continue »

Climate is the single greatest variable in France’s wine production, making its vineyards the perfect climate-change laboratory for scientists...continue »

The melting of polar ice sheets and the resulting stress on the earth's crust from rising seas will increase volcanic eruptions in the years to come...continue »

Dissenting voices

Essays and research challenging the view that the world warming that began around 1880 is caused by human activity, that it poses a serious threat, or that the vagaries of earth’s climate are within human control.

The wind and solar lobbies moan that they don't get their fair share of the subsidy pie. But while coal gets 44 cents per megawatt hour, solar and wind get about $24 each ...continue »

Whatever the recent temp trends signify, it's disturbing they have not received more publicity. If it were getting hotter you'd hear about it everywhere ...continue »

Results obtained from a new type of hurricane model indicate that if the planet continues to warm then hurricane frequency will go down globally ...continue »

While in the skeptic's corner we have Patrick Frank arguing that the unreliability of climate models renders the IPCC's claims about climate change scientifically insupportable ...continue »

New research shows that climate models have consistently overstated warming in Antarctica, and that warming could slow sea-level rise by increasing Antarctic snowfall ...continue »

The greenhouse effect may smooth out rises and falls in temp caused by other things, but it does not itself create heat and is not the determining factor for global temps ...continue »

Just for fun, let's forget about hockey sticks, sunspot cycles, and some people's notions of what causes Burmese cyclones. Let's just consider celebrity hypocrisy ...continue »

Is nature always better off without humans affecting it in any way? Is man-made CO2 pollution? We know the Green opinion, but did anybody ever ask a plant? ...continue »

Two authorities provide analyses of long-term global surface temperature trends. They agree on the trend until 1998, but then a sharp divergence occurs ...continue »

Biofuels are great, and who eats corn, anyway? "I bet if I set a bushel of corn in front of any of those [U.N. critics of biofluels]," says the senator, "not one would eat it" ... continue »

The race is on. Will vested interests and green ideologues be able to get laws passed to control energy before the public wises up to what's really going on with the world's climate? ...continue »

With the Pacific Decadal Oscillation entering a cool phase and solar cycle 24 off to a very slow start we may well be in for an extended period of cooling ...continue »

An insider exchange between climate modelers reveals the extent to which they are themselves leery of attributing predictive power to their models ...continue » Click on "EXPAND ALL"

The CO2 emission targets espoused by the three presidential candidates would send the USA back to emission levels last seen when the cotton gin was in daily use ...continue »

The Earth's present orbital position satisfies all the Milankovitch parameters for a transition to the next ice age. The transition will be sudden and extreme ...continue »

Anthony Watts's long campaign to expose the shoddy condition of US weather stations is paying off. A new network of stations is being installed ...Part 1 » Part 2 »

For 500 years global temps have followed a regular pattern: thirty years of warming, then thirty of cooling. We're now ten years into a new cooling spell ...continue »

We need causal analysis in science, but it’s hard to tell cause from effect in climate theory. Do cloud variations cause temperature changes? Or vice versa, or both?...continue »

Most centuries, North America and Europe are under 1.5km of ice. That's not on the cards, but cooler weather may be just around the corner. Consider the sunspots ...continue »

Was the Little Ice Age a northern event, or did it happen around the globe, showing world climate variability? South American evidence backs a global reading...continue »

President Bush's goal of stabilizing greenhouse-gas emissions by 2025 will be very expensive and is not justified by the scientific facts ...continue »

A new study suggests that melt-water causes only a small increase in the rate at which Greenland's giant glaciers advance toward the sea ...continue »

Yes, CO2 affects climate. So does deforestation, growth of cities, aerosols, ocean cycles, and changes in solar radiation. But only CO2 gets the headlines ...continue »

Patrick Moore says Greenpeace makes a big mistake by opposing "evil" nuclear power. He's well placed to judge, since he was one of the organization's founders ...continue »

If you're a scientist trying to convince people they are making the world warmer, then 16-year-old Kristen Byrnes is your worst nightmare ...continue »

The climate alarmists would have us believe, says Nigel Lawson, that our capacity to adapt to a warmer world is constrained by the limits of existing technology. Nonsense ...continue »

The idea that we make the climate or can control it is too absurd for words, argues Gerrit van der Lingen. All we can do is adapt to change, warming or cooling ...continue »... And have some fun.

One of the most influential scientists behind the theory that global warming has intensified recent hurricane activity now says he will reconsider his stand ...continue »

Why did the BBC alter an article about falling global temps for 2008? The answer is both a revelation and a humiliation for the BBC ...continue » ... BBC ridiculed on YouTube

Scientists and scholars tend to protect their theories by building defenses around them, rather than testing them. Look at climate science, says Don Aitkin ...continue » ... news article

The West and the Third World can make all the climate sacrifices they please, but with China adding the eqivalent of a new Germany in CO2 every year, so what? ...continue »

World temperatures are not just where you, or anyone else, happen to live. They are for the whole world, including the oceans. And they are down sharply ...continue »

Global warming has not enhanced the number or intensity of hurricanes coming in from the Atlantic. In fact, it might have slightly reduced their number...continue »

Dust particles and black soot in the atmosphere have a much greater impact on arctic temperatures than the IPCC has realized, according to new research ...continue »

The Wilkins Ice Shelf "has begun to collapse because of rapid climate change in a fast-warming region of Antarctica." Evidence of man-made global warming? Hardly...continue »

Last year the New York Times breathlessly reported a new island near Greenland – global warming had broken it off the mainland. Another tall tale of climate change...continue »

The alarmists are right: climate change is a serious threat. But they have the temperature direction exactly wrong. The earth will soon be getting a lot cooler ...continue »

The Amazon was the chic eco-cause of the 1990s. Now climate change has top-billing, and in the rush to biofuels the Amazon is going under the plow ...continue »

Another cute (and ill-founded) global warming scare story bites the dust. The Inuit language does indeed have a word for robin: it's koyapigaktoruk ...continue »

Antarctica stubbornly refuses to cooperate with global warming hysteria. Never mind: the media continue falsely to report that the continent is melting away ...continue » ... [more]

A new survey of the scientific literature on climate change reveals that there is little basis for the alarm presently being expressed in the media ...continue »

IPCC members have reached the point of panic mode, the whites of their eyes clearly visible as they seek to explain record low winter temperatures ...continue »

Roy Spencer has published several studies that cast doubt on the IPCC's predictions. The response from the media and other scientists? Absolute silence ...continue »

Climate catastrophism is tied to the decline of the left, says Alexander Cockburn, and the demise of the left’s optimistic vision for political and economic change ...continue »

Tropical tropospheric temperatures are a crucial test for the validity of the IPCC's computer models and doomsday scenarios. Observations show they don't fit ...continue »

Research by Craig Loehle and J.H. McCulloch show earth’s climate bounces around naturally and that temperatures a thousand years ago were similar to today’s ...continue »

Warmus interruptus. Now it's the oceans that are refusing to obey the IPCC. Acting out of what looks like pure malice, they have cooled slightly since about 2003 ...continue » ... [addendum]

The IPCC climate predictions from a just few years back look worse than ever. Or does "climate change" mean global cooling too?...continue » Temperature links are just not there .

If global warming is real threat to the future of the human race, it will be showing up all over the globe, including in such localities as Arkansas and North Carolina

Global warming orthodoxy is a green Da Vinci Code, says Nigel Lawson. It is a great story, a bestseller – and in the end a mountain of nonsense ...continue »

Defying the warming alarmists, the winter of 2008 has turned out to be the coldest since 2001 for the U.S. and the rest of the world, says the NOAA ...continue »

In two years China’s CO2 increase since 2000 will have vastly exceeded reductions achieved by all countries that have signed up to Kyoto combined ...continue » [report here]

Václav Klaus, Czech President, sees in climate hysteria the same "attractive, pathetic, at first sight noble" ideas that have justified totalitarian regimes everywhere ...continue »

The bias at most news outlets is in favor of climate alarmism, with little interest in reporting research that diverges from orthodoxy. Look at the Washington Post ...continue »

The sun influences climate far more than the IPCC admits, says a study just published in Physics Today – "as much as 69% of the increase in Earth's average temperature"...continue »

"Global warming is real and people have something to do with it." A surprising start for the International Conference on Climate Change in NYC. Ronald Bailey reports...part 1 ...part 2 ...part 3

The fundamental flaw in the West's efforts to tackle climate change is that the entire strategy is based on restraining demand for fossil fuels, not on restraining supply ...continue »

Skeptics are accused of venal pecuniary motives. But why think there’s more money and glory to be won by being a skeptic than by joining the global-warming payola? ...continue »

Mandatory caps on carbon betray the sick in the world’s poorest regions by undermining the economic growth that will allow them to move out of primitive living conditions...continue »

The Nongovernmental International Panel on Climate Change is the skeptics' answer to the IPCC and its alarmism. It too offers a "Summary for Policymakers" ...continue »

It's claimed that global warming is the greatest potential threat to humanity, and that it's a threat we have the power to mitigate. Neither claim is true ...continue »

If only the masses better understood the science behind global warming, they’d be more alarmed about the prospect of climate change. Right? Wrong! ...continue » ... full report

Under climate theory all weather can be explained as part of the global-warming scare. If it gets really cold suddenly, that's because of global warming ...continue »

The disappearing snows of Kilamanjaro were supposed to be yet another dire effect of global warming. But the snows are back – so where is the news media? ...continue »

Today 1.6 billion people do not have electric power at home. China and India need energy on a scale that makes CO2 reductions in next 50 years sheer fantasy ...continue »

The smart money is now riding on about 3°F of warming this century. The 20th century saw about half that warming, but a ten-fold increase in real personal wealth ...continue »

As the earth cools in coming years, more CO2 can be expected to dissolve into the oceans. There is no evidence we need a strategy for carbon sequestration, says Lance Endersbee ...continue

January was 0.3°F cooler than the 20th-century average. With the sun now deathly quiet, we may be getting a taste of imminent global cooling ...continue » (More here.)

A school science fair project to measure urban heat island effects in Phoenix, Arizona shows that disproving the IPCC is so easy, even a child can do it ...continue »

If China's carbon usage keeps pace with its economic growth, its CO2 emissions will by 2030 reach an amount equal to the entire world's CO2 production today ...continue »

NOAA scientist: "There is nothing in the U.S. hurricane damage record that indicates global warming has caused a significant increase in destruction along our coasts" ...continue » ...NOAA

Statistician William M. Briggs is in awe of an utterly bullet-proof excuse the IPCC can use if its doomsday predictions don't come true ...continue »

The poor siting of weather stations introduces bias into data. That this issue has not been questioned by climate studies or by the media is a scandal ...continue »

Where has the global warming gone? The Arctic sea ice is almost back to normal and the northern hemisphere is enduring a severely cold winter ...continue »

When someone finds that there's only half as much warming as we thought, and the story is completely ignored, what does this say about the media? ...continue » (And see this.)

The environmentalists' new tactic of closing down coal-fired power plants is driving up electricity prices and will help cause a long-term energy crisis ...continue »

In early January a new sunspot seemed to herald the start of a delayed Solar Cycle 24. Since then, nothing. If you like warmth, this is not a good omen ...continue »

Heat waves kill lots of people, but cold snaps kill many more. A new report by the UK's Department of Health draws from this the all too obvious conclusion ...continue » (More here.)

2008 is off to a very chilly start. New data from the Goddard Institute show a record-breaking drop in temps from January '07 to January '08 ...continue »

The fact that the developed world went into hysterics over changes in global mean temps of a few tenths of a degree will astound future generations ...continue » (More here.)

If more CO2 is bad, then what? Robert Bryce argues that it's impossible to get the developing world to relinquish fossil fuels, and that it would not be ethical to try ...continue »

Data going back centuries show global temps closely track solar cycles. So far in this cycle the sun has been disturbingly quiet. It may be about to get very cold ...continue »

Satellite data show that in a 7-year period in which CO2 emissions increased by 15-20% there has been no warming whatsoever in the lower atmosphere ...continue »

Future generations will have the capital and technology to look after themselves. Unless we squander their inheritance pouring money into pointlessly fighting climate change ...continue »

If we're on the road to climate hell, then it's sure in the slow lane. Warming of 1/10 degree per decade makes isotherms move poleward less than half a mile per year ...continue »

Indonesia's food riots are a foreshock of a massive civil earthquake that will be unleashed as absurd policies are mandated by the global warming mob ...continue »

The Tata Nano gets 50 miles per gallon, while the Toyota Prius only gets 46. So why do environmentalists who love the Prius hate the Nano and want it taxed like crazy? ...continue »

Climate fundamentalists measure the moral value of everything – obesity, having children, gender, divorce – in terms of carbon footprint. This is dangerous ...continue »

Temperature reconstructions that downplay the medieval warm period depend on unreliable tree ring data. Take the tree ring data out and ...continue » (Full article here.)

In a podcast Indur Goklany explains why climate change is far from being the most important environmental problem facing the planet this century ...continue »

The IPCC's chairman has conceded that the flattening-off of the global temperature trend in recent years might be significant. This is just what skeptics have argued ...continue »

"Climate catastrophism represents a new form of the politics of fear," says Alexander Cockburn. To challenge it is to learn what it was once like to be accused of witchcraft ...continue »

In a series of YouTube clips, Australian geologist Bob Carter explains why the hypothesis of dangerous global warming isn't supported by the data...continue » Text version here

CO2 absorbs radiation from only a small part of the spectrum, and most of what it can absorb is being absorbed already. More CO2 will make little difference...continue »

Yet another Russian astronomer argues that the sun is moving into a low-irradiance period and the earth will soon enter a Maunder Minimum-type Ice Age...continue »

The IPCC insists its scenarios take account of heat island effects in urbanization around weather stations. Not so, argues Ross McKitrick...continue » Also in the National Post

Faulty HO-83 thermometers installed in U.S. weather stations in the 1990s make recent climate history appear warmer. Remove their errors and – surprise!...continue » ... See also ...

Despite increasing CO2 concentrations over the 20th century, hurricane landfalls have not trended up. Hurricanes seem in fact to come in cycles...continue »

"Use trained statisticians to do studies that rely on statistics." This is a simple piece of advice that climatologists are all too often not prepared to follow...continue » (But see this.)

Research shows that the earth has warmed only about half as much as previously thought by the IPCC. Do the media care? Of course not...continue »

Are you listening, Al? A survey of travel habits shows that the most green conscious people in Britain are also the biggest carbon polluters...continue »

Global Warming? Bjørn Lomborg scoffs. Air pollution is the big problem in the Third World. A billion people have no electricity and must burn wood and dung...continue »

Research from UC Irvine shows that as much as one third of recent Arctic warming has been caused by soot and dirty snow, not by the greenhouse effect...continue »

"Global warming could result in an increase in the number of people being hospitalized with kidney disease." This is a tautology. It says precisely nothing... continue »

The EU is to re-examine its policy on biofuels, which, as even Greenpeace concedes, "could be worse than useless at combating climate change"...continue »

Heat-related deaths, sea-level rise, hurricanes and disease: a litany of scare-stories about global warming that, says Bjørn Lomborg, are simply not supported by the facts...continue »

Did the IPCC's predictions about the last 7 years come true? The records vary so much that even this perfectly simple question has no clear answer...continue »

Glaciers existed even when the earth was so warm that crocodiles prowled the Arctic. Global warming may cause less sea level rise than pessimists think...continue » ...more

The warming of the North Atlantic in the last 50 years can be explained by wind patterns and natural variability. It isn't evidence for global warming...continue »

Not only is there no convincing evidence for decline in tropical forests, recent data seem to show there is net reforestation across the globe...continue »

"I was on the global warming gravy train." David Evans saw thousands of bureaucratic jobs created to stave off climate disaster. Of course, the evidence...continue »

Solar Cycle 24 has at last begun, and its late arrival may presage a Dalton Minimum as cold as the one in the early 19th Century... continue » More on the Dalton Minimum here and here

The data are in, and there is no increased “landfall frequency or intensity observed” for hurricanes hitting the U.S. mainland over the 20th century...continue »

Earth is now at the peak of one of its passing warm spells, says Oleg Sorokhtin. It's time to stock up on fur coats and felt boots...continue »

The year of global cooling. In 2007, hundreds of people died, not from global warming, but from cold weather hazards. And look at the Southern Hemisphere...continue »

Activists, journalists, and publicity-savvy scientists selectively now monitor the globe looking for evidence of that new form of sinfulness, burning fossil fuels...continue »

“Attempts to prevent global climate change are ultimately futile, and are a tragic misallocation of resources that would be better spent on humanity's real and pressing problems”...continue »

Recent dramatic thawing of the Arctic region cannot be explained by man-made global warming alone, says a new study in Nature...continue »

Restructuring the world’s energy economy in pursuit of the chimera of stopping a "dangerous" human-caused climate change is a big, perhaps tragic, mistake...continue »

Al Gore opened his speech in Bali with: “We, the human species.” Nothing better sums up his megalomaniacal delusions than those four words...continue »

Virtual science, the kind the IPCC uses to scare us to death, is ripe for manipulation, usually unconsciously, by virtuous scientists. Michael Duffy explains...continue »

Over 400 prominent scientists from more than two dozen countries have voiced objections to major aspects of the so-called consensus on man-made global warming...continue »

Cold weather is deadly. Fatalities in the U.S. tend to climb for several weeks after severe cold spells, numbering 360 per chilly day and 14,380 per year, according to a new study...continue »

Has global warming stopped? The global temperature of 2007 is about the same as 2006 and every year since 2001, says David Whitehouse...continue » (But see this.)

Are human beings 90% to 95% likely to be responsible for recent warming? That was the claim. In fact, there was surprisingly little support for this notion in the IPCC...continue »

Alarmists overstate the dangers of climate change: the number of people killed each year by weather-related disasters is in fact falling. ...continue »

We all want a better world, says Bjørn Lomborg. But let’s not be swept up in making a bad investments, simply because we have been scared by lurid headlines...continue »

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