PSR is working intensively to assure that the EPA’s power to regulate emissions of carbon dioxide from the biggest polluters is not stripped away.

Add your health professional voice to the call for confronting global warming and building a healthy, safe energy future.

The Arctic is warmer than it's been in 2,000 years, even though it should be cooling because of changes in the Earth's orbit that cause the region to get less direct sunlight. Indeed, the Arctic had been cooling for nearly two millennia before reversing course in the last century and starting to warm as human activities added greenhouse gases to the atmosphere.

The Senate will soon be considering climate change and energy legislation. We need your help at this critical time to speak in support of strong legislation that confronts the growing threat from climate change while leading the U.S. towards a healthy, peaceful and sustainable future.

On continent's boggy Arctic fringe, scientists search for signs of future climate calamity.

PSR and the National Wildlife Federation today released More Extreme Heat Waves: Global Warming’s Wake Up Call, a new report describing the health dangers from extreme heat and identifying the 30 U.S. cities whose populations are most vulnerable.

More extremely hot summer days are projected for every part of the country, detailed in a new report from the National Wildlife Federation and Physicians for Social Responsibility.

PSR recognizes the historic significance of House passage on June 26, 2009, of the American Clean Energy and Security Act (ACES). For the first time, a branch of Congress has taken responsibility for acting to comprehensively reduce greenhouse gas emissions.

Dr. Catherine Thomasson's op-ed on the need for clean alternatives

The Environmental Protection Agency has made an endangerment finding making it clear that greenhouse gas emissions must be regulated in order to control global warming and protect human health. Last week, PSR leaders applauded the finding and encouraged the EPA to act.

PSR expresses its appreciation to representatives Henry Waxman (D-CA) and Ed Markey (D-MA) and other members for their leadership in moving a comprehensive energy and climate bill, H.R. 2454, through the House Energy and Commerce Committee. However, in order to protect public health from the most catastrophic impacts of global warming, PSR is calling for significant improvements in the bill to make it more effective.

The House Energy and Commerce Committee, splitting largely along party lines, approved on Thursday the most ambitious energy and global warming legislation ever debated in Congress.

Dr. Peter Wilk, PSR Executive Director, is quoted on the impact of global warming on human health.

Testifying today before the Environmental Protection Agency (EPA), Dr. Peter Wilk, Executive Director for PSR, called on the agency to move forward quickly with regulations to control the emissions of greenhouse gases that are contributing to global warming and creating a serious public health threat.

Climate change poses the biggest threat to human health in the 21st century but its full impact is not being grasped by the healthcare community or policymakers, a medical report concludes.

In the debate over his top environmental goals, President Obama is backing away from "cap and trade." Not the policy. It's the phrase itself, deemed confusing by Democratic pollsters, that has all but disappeared from the president's vocabulary of late.

“The Story of Stuff,” a 20-minute video about the effects of human consumption, has been embraced by teachers eager to supplement textbooks that lag behind scientific findings on climate change and pollution.

Soon many scientists say we may need to start building space mirrors, creating artificial clouds or altering the chemistry of the sea to prevent the worst effects of global warming.

For some, President Obama's $3.6 trillion blueprint would provide a flush of new cash to spur the development of energy-efficient buildings and carbon-free wind and solar farms. But others saw the plan as hampering the progress of the very fuels that switch on most of the nation's lights.

Yale University scientists reported recently that global warming could change the feeding patterns of ticks that commonly carry Lyme disease, resulting in more persistent strains and more severe infections.