A Quote by James Hansen

Our analysis shows that, for the extreme hot weather of the recent past, there is virtually no explanation other than climate change. The deadly European heat wave of 2003, the fiery Russian heat wave of 2010 and catastrophic droughts in Texas and Oklahoma last year [2011] can each be attributed to climate change. The odds that natural variability created these extremes are minuscule, vanishingly small. To count on those odds would be like quitting your job and playing the lottery every morning to pay the bills.
Recent data and research supports the importance of natural climate variability and calls into question the conclusion that humans are the dominant cause of recent climate change.
Scientists tend to focus on what they don't know more than what they do know. And there are a lot of things we still don't know about the climate. But we know the difference between climate variability and climate change, and right now the amount of carbon in the atmosphere is well outside the variability pattern - and that's quite quantifiable.
Despite the international scientific community's consensus on climate change, a small number of critics continue to deny that climate change exists or that humans are causing it. Widely known as climate change "skeptics" or "deniers," these individuals are generally not climate scientists and do not debate the science with the climate scientists.
I think climate change is probably the most extreme, and it's been going on for years because it's very difficult to talk about a planetary issue like climate change and to get people who live within four-year electoral cycles to actually pay attention to something that you predict is happening way in the future.
Global Warming Snowstorm Algore, paralyzing the upper Midwest two weeks before winter. Every time he shows up someplace, every time, it's almost comical, every time Al Gore shows up someplace there's either an outbreak of weather that is the exact opposite of what he's talking about, he never does seem to get embarrassed. That's why they stopped calling it global warming and now call it climate change so that virtually every perceived abnormality can be said to be caused by climate change.
Climate change is killing Americans. Wildfires, heat waves, mudslides, hurricanes, and floods lead to hundreds if not thousands of deaths every year. But those are only the direct fatalities.
Climate change has a very high procrastination penalty that just grows with each passing year of inaction - rather like what happens if you don't pay off your credit card. But for climate, there is no such thing as a fresh start from bankruptcy.
We can be thankful President Barack Obama is taking aim at one of the prime causes of climate change and extreme weather: air pollution. The EPA's carbon pollution standards are the most significant step forward our country has ever taken to protect our health by addressing climate change.
Each year we pump at least six billion tons of heat-trapping carbon into the innermost layer of our atmosphere, whose outer extent is only about twelve miles overhead. According to an IPCC (United Nations' Intergovernmental Panel on Climate Change) report released this year, atmospheric CO2 will, if the buildup is left unchecked, double from its pre-industrial level within the next century. That doubling of CO2 correlates with an increase in the global temperature of at least three to eight degrees Fahrenheit. The last ice age was just five to nine degrees colder than our current climate.
2010 is the International Year of Biodiversity. We can classify our crops into those which are climate resilient and those which are climate sensitive. For example, wheat is a climate sensitive crop, while rice shows a wide range of adaptation in terms of growing conditions.
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.
The effects of climate change are real and only getting worse. I would like to build on the promises of the Paris Climate Agreement and make our country a global leader on the fight against climate change.
Humanity is sitting on a time bomb. If the vast majority of the world's scientists are right, we have just ten years to avert a major catastrophe that could send our entire planet's climate system into a tail-spin of epic destruction involving extreme weather, floods, droughts, epidemics and killer heat waves beyond anything we have ever experienced - a catastrophe of our own making.
I like weather better than climate. The dry season is a gold vacuum; but the rainy season has change, which is weather. And while climate may create a race, weather creates the temper and sensibility of the individual.
There is no doubt that pollution contributes to the climate changing around us, but what I refuse to do is support a climate tax bill like Waxman/Markey put in place that would have cost farmers and ranchers in the state, that would cost small business the opportunity to grow, that would increase that bills that families pay, $1,700 a year.
Too often, the air conditioners we use to cool down also contribute to climate change - the very force that's fueling extreme heat.
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