"Doing nothing often has a cost -- and when it comes to storing the nation’s nuclear waste, the price is $38 billion and rising."

"Billionaire Tom Steyer plans to renew his fight against Keystone XL in Washington on Monday."

"Outgoing New York City Mayor Michael Bloomberg might use some of his fortune on behalf of 2014 candidates who are hawkish on battling climate change."

"A conservation group is calling a bill proposed by Sen. Ron Wyden (D-Ore.) a 'nightmare for Oregon's forests.'"

"The National Park Service (NPS) is walking back comments that showcased doubts about whether natural gas development can help battle climate change, acknowledging they 'did not receive appropriate review.'"

A major reason for the U.S. to cut its greenhouse gas emissions is to play a global role as a technological, economic, and political leader while the world is shifting to cheaper production of low-carbon energy.

"Fears for the future: About one in four people in Arkansas counts on drinking water from a source that is crossed by Exxon's burst Pegasus pipeline."

"The 1970s began with a remarkable pulse of federal legislation aimed at protecting endangered species and restoring the nation’s air and waters. But it took until 1978 for another type of environmental threat, toxic hot spots left behind by industrial activity, to gain the spotlight."

"All across the country -- most recently, in the state of Texas -- local battles over the teaching of evolution are taking on a new complexion. More and more, it isn't just evolution under attack, it's also the teaching of climate science."

"A major winter storm set to hit the East Coast on Tuesday and Wednesday is threatening to snarl millions of Thanksgiving travelers' holiday plans, forecasters said on Monday."