"The Trump administration announced on Monday that it would take formal steps to repeal President Barack Obama’s signature policy to curb greenhouse gas emissions from power plants, setting up a bitter fight over the future of America’s efforts to tackle global warming."

"Greenhouse gas emissions from America’s largest industrial facilities fell 2 percent in 2016 to 2.99 billion tonnes, led by a large cut from the power sector, according to data published on Thursday by the Environmental Protection Agency."

"A federal agency faces a deadline this week to decide whether the iconic Pacific walrus will join the polar bear on the threatened species list."

"When it comes to climate change, we know where the most important warming agent — carbon dioxide — is coming from. Most of it is coming from the burning of fossil fuels, with additional contributions from deforestation and other causes."

"The Trump administration will repeal the Clean Power Plan, the centerpiece of President Barack Obama’s effort to fight climate change, and will ask the public to recommend ways it could be replaced, according to an internal Environmental Protection Agency document."

"More than 6 in 10 Americans believe that climate change is a problem that the federal government needs to address, according to a new poll."

"Of the many terms attached to our burgers and steaks, "sustainable" and "grass-fed" often sit next to each other. But a new study finds that raising livestock on grassy pastures is far from sustainable and doesn't have the climate benefits proponents have claimed."

"State and federal environmental agencies report Harvey knocked out five drinking-water systems and seven sewage systems in the 58 Texas counties covered by Gov. Greg Abbott's disaster declaration."

"State and federal environmental agencies report Harvey knocked out five drinking-water systems and seven sewage systems in the 58 Texas counties covered by Gov. Greg Abbott's disaster declaration."

"In the Trump administration's list of dos and don'ts, 'climate change' is out and 'resilience' is in. The word choices by administration officials -- and the extent to which they're going to avoid referencing global warming altogether -- are notable in the aftermath of recent severe hurricanes and in the face of questions about what could have caused them."