The world’s leading scientists agree that the planet is warming and that human activities—especially the burning of fossil fuels and the clearing of forests—are a big part of the cause.
In a 2007 report, the Intergovernmental Panel on Climate Change, the international group of scientists charged with reviewing, validating and summarizing the latest research concluded that the warming of the climate system is unequivocal. They stated that it is 90 percent certain that human-generated greenhouse gases account for most of the warming in the past 50 years.
Many published scientific reports have documented the actual observed impacts of a warming planet—including dramatic melting of the Arctic ice cap, shifting wildlife habitats, increased evidence of wildfires, heat waves and more intense storms. Americans are now seeing the impacts of global warming in their backyards. The warming trend poses serious risks to the economy and the environment.
Pew uses two approaches to address climate change: science and policy analysis and advocacy campaigns.
The Pew Center on Global Climate Change is a leading policy and research institute. It advances debate through analysis, public education and a cooperative approach with business. The center launched in 1998.
The Pew Campaign on Global Warming is aimed at adoption of a national policy to reduce emissions throughout the economy, and the Pew Campaign for Fuel Efficiency seeks more stringent fuel efficiency standards for the nation’s cars and trucks.
See: Pew Environment Group (PEG) Factsheet: Industry Opposition to Government Regulation (PDF), October 14, 2010.