The fracking boom has led to a large increase of hydrocarbon emissions in rural areas, reversing some regional air toxics trends.
Two moves by the Trump administration signal a dramatic shift in energy policy to favor coal and nuclear, but markets forces and legal challenges mean changes could take years.
Why assembling two teams to debate climate change is all about political spectacle and sowing doubt – and has nothing to do with actual climate science.
Green groups fighting Trump's anti-environmental agenda should heed precedents from the Reagan and George W. Bush administrations. They can also learn from the Australian experience.
While many people are willing to happily gamble with pharmaceuticals, which may offer the most trivial of benefits, they are not ready to believe the facts on climate change.
Economic forces – alongside a moral imperative – are driving cities, states and companies to make changes to forestall climate change, regardless of the whims of the White House.
Oklahoma is trying to limit the number of earthquakes caused by oil and gas extraction, but some existing faults there – which could be activated by wastewater injection – have never been mapped.
An extensive amount of research has shown a direct link between air quality and fetal and infant health. Cleaner air has saved lives – and money.
Scientists are marching in 500 cities across the globe to protest US president Donald Trump's anti-science policies and make their voices heard.
Addressing social and health inequalities from pollution is no longer a priority at the EPA. What did the Office of Environmental Justice do and what will happen if it's shut down?
The EPA served as a conduit between the federal government and at-risk communities. Communications scholars look at how environmental justice issues could be set back in scaled-down EPA.
Reports about trace amounts of pesticides, like the EWG's Dirty Dozen, can leave people afraid to buy fruits and vegetables. But the hype is often overblown.
EPA Administrator Scott Pruitt has said the agency's purview should not include climate change, but a look at its history under both Republican and Democratic presidents says otherwise.
Even Trump's most destructive proposals pale in comparison. The president is merely throwing a match on a burning building.
Today's political climate gives new EPA head Scott Pruitt a clear path to seriously cut back EPA enforcement – more than previous administrations.
Africa needs to learn from the experiences of others who have negotiated free trade pacts. In particular it needs to ensure its process is inclusive and does not pander to a few special interests.
Economists have shown, using both theory and data, that uncertainty about U.S. environmental policies makes clean tech innovation less likely.
While Trump’s more extreme campaign promises may not eventuate, substantive changes in how the US engages with the world on environmental, and many other, issues are likely.
The 'war on coal' is not really a result of onerous regulations but a combination of market forces over which a Trump administration has limited control.
Do environmental regulations help or hurt the economy? Democrats and Republicans sharply disagree. Six of our experts consider whether we have too much or too little regulation.