Electric cars get a lot of hype, but what really matters for the climate are excess emissions from the many millions of gasoline vehicles still sold each year.
Fossil fuel power plants contribute to climate change by releasing greenhouse gases that trap heat near Earth’s surface.
AP Photo/J. David Ake
An appeals court described the EPA’s effort as ‘a series of tortured misreadings’ of US law.
President-elect Joe Biden opposes proposals to allow uranium mining around the Grand Canyon, which the Trump administration supports.
Michael Quinn, NPS/Flickr
The Trump administration has used executive orders, deregulation and delays to reduce environmental regulation. Biden administration officials will use many of the same tools to undo their work.
Secondhand smoke may come from many miles away.
David Tadevosian/Shutterstock.com
Matthew E. Kahn, USC Dornsife College of Letters, Arts and Sciences
George H.W. Bush, who pledged to be ‘the environmental president,’ took a market-based approach to pollution control that helped clear the air. Now some experts think it could work on climate change.
Industrial facilities like this oil refinery in Anacortes, Washington are significant air pollution sources.
Walter Siegmund/Wikimedia
An air pollution expert with years of experience advising federal regulators describes how the Trump administration is speeding up reviews and reducing scientific input.
A study finds that higher ozone levels correlate with slower performance times for college endurance athletes.
Pavel1964
It’s time Australian states took a lesson from US states when it comes to working around obstructive federal climate change policies.
A barn that can hold up to 4,800 hogs outside Berwick, Pa. The state says the farm is in compliance with regulations, but residents have gone to court seeking relief from odors.
AP Photo/Michael Rubinkam
Many people who live near large-scale livestock farms complain about noxious smells, air and water pollution and health risks. With little help from regulators, they are turning to lawsuits.
Tighter emissions standards create costs for truck manufacturers yet provide health benefits for society. How should they be weighed?
Lesterman
EPA Administrator Scott Pruitt has proposed steps that would reduce economic benefits to society from new regulations. An economist who worked for Presidents Clinton and Obama calls this a strategy to justify deregulation.
Smog alert in Cleveland, Ohio, July 20, 1973.
USEPA
EPA Administrator Scott Pruitt wants to change the grounds for setting US air pollution targets. An environmental lawyer explains why Pruitt’s approach misreads the law and could roll back decades of gains.
Rush hour on the Hollywood Freeway, Los Angeles, September 9, 2016.
AP Photo/Richard Vogel
Air pollution could be the next battleground between California and the Trump administration, which is reviewing the Golden State’s special legal authority to regulate tailpipe emissions.
Because of Hurricane Harvey, refineries and other facilities released 2,000 tons of pollutants.
AP Photo/LM Otero
A recent study shows that large piles of coal produce measurable quantities of fine particulate air pollution within a 25-mile radius. Covering coal trains and storage piles could reduce the problem.
President Trump has ordered federal agencies to cut two regulations for every new one they enact – ignoring the fact that many regulations produce large social benefits.
US President Barack Obama’s new climate plan aims to cut greenhouse emissions from the nation’s coal-dominated power sector by 32% by 2030. Will it get through, and how will it affect this year’s climate talks?
Distinguished Professor of Practice, Trachtenberg School of Public Policy & Public Administration, and Director of the Regulatory Studies Center, George Washington University