The IPCC needs to change and switch to shorter, more targeted reports | Environment | guardian.co.uk

The selected authors need to represent the full range of credible views, including those of the skeptics, and must ensure that all statements are based on sound science and that the citations used contain convincing evidence.
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The key question is the cause of the observed changes in temperature. The IPCC concluded [how, specifically?] that it is more than 90 percent certain that most of the observed changes over the past 50 to 60 years are due to human activities and that the changes cannot be explained by known natural phenomena.

C3: Despite 20th Century Minor Warming, Ice Cores Indicate Earth Is Still Cooling Since The Warming of Minoan Period

Regardless of the claims and protestations of Obama, Osama bin Laden, Gordon Brown, Paul Krugman, Tom Friedman, Robert Mugabe, Kevin Rudd, Hugo Chavez, Brad DeLong, and other radical, leftist-totalitarian progressives, the recent global warming that ceased since 1998 was not that unusual. The earth constantly experiences extended periods of natural warming and cooling that significantly impacts the overall climate.

ABC's Sam Champion Nixes Idea That Cold Winter Discounts Global Warming, Touted Prof Who Blamed Heat Wave on Climate Change | NewsBusters.org

So, it's okay to suggest that a warm snap proves global warming, but there's "no way" to disprove climate change with an unusually snowy winter? Apparently, anecdotal evidence is only acceptable some of the time.

Al Gore makes latest global-warming pitch in New York Times - NYPOST.com

In fact, recent research actually contradicts Gore's claims about "significantly more water moisture in the atmosphere."

In late January, Scientific American reported: "A mysterious drop in water vapor in the lower stratosphere might be slowing climate change," and noted that "an apparent increase in water vapor in this region in the 1980s and 1990s exacerbated global warming."