With each passing year, experimental observations further undermine the claim of a large positive feedback from water. In fact, observations suggest that the feedback is close to zero and may even be negative.
About fifty million years ago...geological evidence indicates CO2 levels were several thousand ppm, much higher than now. And life flourished abundantly.
I sometimes wish we could have, over the next five or ten years, a lot of horrid things happening-you know, like tornadoes in the Midwest and so forth-that would get people very concerned about climate change.
Climate has been changing for billions of years.
We have 25 or so years invested in the work. Why should I make the data available to you, when your aim is to try to find something wrong with it.
I know there is pressure to present a nice tidy story as regards 'apparent unprecedented warming in a thousand years or more in the proxy data' but in reality the situation is no quite so simple.
I've just completed Mike's [Mann] Nature trick of adding in the real temps to each series for the last 20 years (i.e. from 1981 onwards) and from 1961 for Keith's [Briffa] to hide the decline.
The amazing exhibition of oil which has characterized the last twenty years, and will probably characterize the next ten or twenty years, is nevertheless, not only geologically but historically, a temporary and vanishing phenomenon.
Everything will be solar in 30 years.
In a few years, you should be able to plug your American-made plug-in hybrid into the outlet in your garage, so that you never use a drop of gas on your daily commute. This won't happen overnight, but I promise you, it is closer than you think.
There is good evidence that last year's European heat wave was influenced by global warming. It resulted in 26,000 premature deaths and cost $13.5bn.
Winter regularly takes many more lives than any heat wave: 25,000 to 50,000 each year die in Britain from excess cold. Across Europe, there are six times more cold-related deaths than heat-related deaths...by 2050...Warmer temperatures will save 1.4 million lives each year.
Warming of the climate system is unequivocal...most of the global average warming over the past 50 years is very likely due to anthropogenic greenhouse gases increases.
In my more than 60 years as a member of the American scientific community, including service as president of both the National Academy of Sciences and the American Physical Society, I have never witnessed a more disturbing corruption of the peer-review process than the events that led to this IPCC report.
...in just 25 years the glaciers in the Himalayas which provide water for three-quarters of a billion people could disappear entirely.
...if we all turned down the thermostat in our house by just one degree, we would save over £650 million worth of energy and nearly nine million tonnes of carbon emissions every year. That would be the equivalent of taking three million cars off our roads...we can bring about a Green Consumer Revolution in this country to improve our lives, enrich our economy and protect our environment.
The World Health Organization recently published some data showing that each overweight person causes and additional one tonne of CO2 to be emitted every year. With one billion people overweight around the world-of whom at least 300 million are obese-that's an additional one billion tonnes.
There is, even today, a Flat Earth Society that meets every year to say the Earth is flat. The science about climate change is very clear. There really is no room for doubt at this point.
Access to supercomputers. The science is well ahead of our ability to implement it. It's quite clear that if we could run our models at a higher resolution we could do a much better job-tomorrow-in terms of our seasonal and decadal predictions. It's so frustrating. We keep saying we need four times the computing power. We're talking just 10 or 20 million a year-dollars or pounds-which is tiny compared to the damage done by disasters. Yet it's a difficult argument to win.
The ten hottest years in the atmospheric record, going back only 160 years, have been in the last eleven years.
The Earth is warming but physical evidence from around the world tells us that human-emitted carbon dioxide has played only a minor role in it. Instead, the mild warming seems to be part of a natural 1,500-year climate cycle (plus or minus 500 years) that goes back at least one million years.
...it is quite obvious that the temperature change during the last 100 years or so includes significant natural changes, both the linear change and fluctuations. It is very puzzling that the IPCC reports state that it is mostly due to the greenhouse effect.
Few scientists now dispute that today's soaring levels of carbon dioxide and other gases in the atmosphere will cause global temperature averages to rise by as much as nine degrees Fahrenheit sometime after the year 2000.
...2009 saw the eighth 'ten-year flood' of Fargo, North Dakota, since 1989. In Iowa, Cedar Rapids was hit last year by a flood that exceeded the 500-year flood plain. All-time flood records are being broken in areas throughout the world.
Remember...this year has already seen more billion-dollar weather-related disasters than any year in US history. Last year was the warmest ever recorded on planet Earth. Arctic sea ice is near all-time record lows. Record floods from Pakistan to Queensland to the Mississippi basin; record drought from the steppes of Russia to the plains of Texas...This is what climate change looks like in its early stages.
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