The finding that the climate has warmed in recent decades and that human activities are already contributing adversely to global climate change has been endorsed by every national science academy that has issued a statement on climate change, including the science academies of all of the major industrialized countries. With the release of the revised statement by the American Association of Petroleum Geologists in 2007, no remaining scientific society is known to reject the basic findings of human influence on recent climate change.
Environmental groups, many governmental reports, and the media in all countries but the United States often state that there is virtually unanimous agreement in the scientific community in support of human-caused global warming. Opponents either maintain that most scientists consider global warming "unproved," dismiss it altogether, or highlight the dangers of focusing on only one viewpoint in the context of what they say is unsettled science, or point out that science is based on facts and not on opinion polls.
On April 29, 2008, environmental journalist Richard Littlemore revealed that a list of "500 Scientists with Documented Doubts of Man-Made Global Warming Scares" distributed by the Heartland Institute included at least 45 scientists who neither knew of their inclusion as "coauthors" of the article, nor agreed with its contents. Many of the scientists asked the Heartland Institute to remove their names from the list. The institute refused these requests, stating that the scientsts "have no right - legally or ethically - to demand that their names be removed."
In 1997, the "World Scientists Call For Action" petition was presented to world leaders meeting to negotiate the Kyoto Protocol. The declaration asserted, "A broad consensus among the world's climatologists is that there is now ‘a discernible human influence on global climate.’" It urged governments to make "legally binding commitments to reduce industrial nations' emissions of heat-trapping gases", and called global warming "one of the most serious threats to the planet and to future generations." The petition was conceived by the Union of Concerned Scientists as a follow up to their 1992 World Scientists' Warning to Humanity, and was signed by "more than 1,500 of the world's most distinguished senior scientists, including the majority of Nobel laureates in science.""
ok i believe that global warming is a natural occurence, but that humans are also contributing to this phenomena and speeding up the process. i have done numerous school reports on this subject and i have yet to been shown something that will take away my feeling of "global warming is real"