Read the article.

It isn't debateable. Over 600 scientist agree that global warming is taking place.

The only scientists that disagree are being paid by ExxonMobil. Coincidence? I doubt it.

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"There was an extraordinary campaign by the denial machine to find and hire scientists to sow dissent and make it appear that the research community was deeply divided," says Dan Becker of the Sierra Club. Those recruits blitzed the media. Driven by notions of fairness and objectivity, the press "qualified every mention of human influence on climate change with 'some scientists believe,' where the reality is that the vast preponderance of scientific opinion accepts that human-caused [greenhouse] emissions are contributing to warming," says Reilly, the former EPA chief. "The pursuit of balance has not done justice" to the science. Talk radio goes further, with Rush Limbaugh telling listeners this year that "more carbon dioxide in the atmosphere is not likely to significantly contribute to the greenhouse effect. It's just all part of the hoax." In the new NEWSWEEK Poll, 42 percent said the press "exaggerates the threat of climate change."
Now naysayers tried a new tactic: lists and petitions meant to portray science as hopelessly divided. Just before Kyoto, S. Fred Singer released the "Leipzig Declaration on Global Climate Change." Singer, who fled Nazi-occupied Austria as a boy, had run the U.S. weather-satellite program in the early 1960s. In the Leipzig petition, just over 100 scientists and others, including TV weathermen, said they "cannot subscribe to the politically inspired world view that envisages climate catastrophes." Unfortunately, few of the Leipzig signers actually did climate research; they just kibitzed about other people's. Scientific truth is not decided by majority vote, of course (ask Galileo), but the number of researchers whose empirical studies find that the world is warming and that human activity is partly responsible numbered in the thousands even then. The IPCC report issued this year, for instance, was written by more than 800 climate researchers and vetted by 2,500 scientists from 130 nations."