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.
Residents of Flint, Michigan wait at a congressional hearing in Washington, D.C. on the water crisis.
Hillary Clinton has elevated environmental justice to a high level as a presidential nominee, but as the Flint water crisis demonstrates, the deeper problem lies in ineffective government agencies.
Houston in 2002.
U.S. states need to put in place new ozone air quality standards, but how they are measured – based on peak ozone – doesn't always best reflect a city's overall air quality.
Surgeon General Dr. Vivek Murthy, in a meeting last year with Obama, called climate change ‘a new kind of threat we are facing.’
Academics are studying whether talking about climate change as a health risk, rather than an environmental or economic issue, will dispel Americans' general indifference to global warming.
The Hazelwood fire burned for 45 days in 2014.
AAP Image/Incident Control Centre Hazelwood
Two years after Morwell was blanketed in smoke from the Hazelwood fire, environmental charges have been laid against the mine's operators. But the process should be more open and democratic - and quicker.
In addition to the Clean Power Act policy for climate change, the Supreme Court will be hearing cases on the extent of protections under the Clean Water Act.
A look at Scalia's decidedly negative legacy on environment reveals how important the next Supreme Court will be on environmental questions, including the EPA Clean Power Plan.
By putting a temporary halt to Obama’s cornerstone climate policy, the Supreme Court puts the next president in the driver’s seat.
Even before the death of Justice Antonin Scalia, the Supreme Court’s stay placed the fate of the EPA Clean Power Plan into the hands of the next president.
Supreme Court justices at the State of the Union: will its surprising EPA decision be seen as an environmental version of the controversial Bush v. Gore?
By halting Obama's cornerstone climate policy before considering its legality, the Supreme Court could further tarnish its partisan reputation.
Ground-level ozone levels in US lag other countries’ guidelines for air quality.
The US has stricter ozone rules but the limits lag guidelines set by some other countries and more coordination in regulation is needed to address air pollution globally.
The EPA Clean Power Plan imposes limits on power plants’ carbon emissions.
Poor Americans suffer disproportionately from higher energy prices. Energy policies should fund innovation to make low-carbon energy cheaper.
EPA to states: we need a reductions plan.
Complicated and controversial, the EPA Clean Power Plan is well-conceived and has the potential to curb emissions but still faces serious hurdles.
Not happy in coal country – unless you’re a lawyer.
The expected barrage of legal attacks on the EPA Clean Power Plan hinge on two arguments, which may ultimately go to the US Supreme Court.
Now regulated for carbon emissions.
How the US ended up regulating carbon emissions using the 1970 Clean Air Act rather than a national cap-and-trade emissions trading system.
Obama announces the EPA Clean Power Plan at the White House.
A panel of scholars provide analysis of the Obama administration's EPA Clean Power Plan and its impact on the electricity sector, the climate and politics at home and abroad.
More of this, says Hilary Clinton.
Brookhaven National Laboratory
Hillary Clinton's energy and climate platform emphasizes renewable energy and the health benefits of the plan -- a position that will resonate with many voters.
The EPA seemed to think the benefits so outweighed the costs that the latter weren’t worth considering.
Cost benefit via www.shutterstock.com
Regulations that do significantly more harm than good are never appropriate, as the court concluded.
A first: limits on carbon emissions from power plants.
Despite looming legal challenges, states are devising plans to comply with limits on power plant carbon emissions – a crucial part of Obama's climate policies.
Power of the pen: Obama signs executive order to reduce greenhouse gases from government.
The EPA said it will regulate emissions from airplanes – the latest in a string of environmental and climate regulations Obama has used to bypass the Republican-led Congress.
Where do clean water rules begin and end?
The EPA is seeking to clarify the reach of the landmark Clean Water Act to cover tributaries, yet people in agriculture and homeowners worry it will lead to onerous permitting.
Trying to stop an incinerator project in Baltimore.
The EPA and other federal agencies have yet to address environmental justice – despite a long history of poor and minority communities suffering environmental ills disproportionately.