The March for Science on April 14 and Earth Day on April 22 are likely to generate big crowds demonstrating against Trump administration policies. Here are some issues they'll be marching about.
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.
Since the federal government started setting fuel economy standards, US-built cars have doubled their fuel efficiency, saving money for consumers and reducing pollution.
An academic suing the EPA over its decision to bar certain scientists from serving on advisory boards says the EPA needs to address legitimate criticisms to rebuild after Pruitt.
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.
The Trump administration is committed to deregulating industry, as it's done with the EPA Clean Power Plan. But a historian shows how regulations have actually benefited both industry and consumers.
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.
Trump administration officials argue that states can regulate more effectively than the federal government. But without leadership from the top, federalism may allow red states to avoid acting.
Can federal agencies stack advisory panels with friendly members? Some have tried, but a scientist who has advised many administrations says they will produce bad policies that lack broad support.
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.
The Clean Water Rule spells out which streams, wetlands and other water bodies receive federal protection. The Trump administration wants to repeal it, but will face high hurdles in court.
President Trump's budget would cut funding for Superfund, which cleans up the nation's most toxic sites, by nearly one-third. An economist explains how Superfund cleanups benefit local communities.
President Trump says environmental regulation kills jobs. To fight back, conservation advocates need to show that protecting the environment can produce jobs and local benefits.
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.
Today's political climate gives new EPA head Scott Pruitt a clear path to seriously cut back EPA enforcement – more than previous administrations.
We may picture regulators tying businesses up in red tape, but research shows that many environmental regulators have collegial relationships with the companies they regulate.
Get ready for Senate hearings and confirmation votes on President Trump's Cabinet picks by reading this roundup of key coverage from our archive.
Economists have shown, using both theory and data, that uncertainty about U.S. environmental policies makes clean tech innovation less likely.