"Dan Misleh, director of the Catholic Climate Covenant, found himself facing a skeptic recently after he outlined the coalition's preparations for Pope Francis' upcoming encyclical on global warming."

"Yosemite National Park is bracing for its driest year on record, with visitor bureaus downplaying the allure of the park's most famous waterfall and instead touting the park as a destination for hiking, bicycling and photography."

"RENO, Nev. -- Todd McNeal, chief of Twain Harte Fire and Rescue, spoke before his fellow firefighters and foresters last week with the tone of an evangelist. 'There is fundamental change that has occurred around us,' said McNeal, his voice rising to fill a dimly lit casino resort conference hall."

"The surge that's scheduled to hit the American coastline Wednesday isn't coming from a hurricane, but it could still leave a feeling of helplessness in its wake. Flood insurance rates are set to skyrocket when a new bill goes into effect on April 1."

"The Obama administration's plan for U.N. climate change talks encountered swift opposition after its release Tuesday, with Republican leaders warning other countries to 'proceed with caution' in negotiations with Washington because any deal could be later undone."

"Fort Collins, Colo., led by a Republican mayor, approves targets to reduce emissions and become carbon neutral by 2050, but hurdles remain."

"A new poll finds an overwhelming majority of Americans support an international agreement to cut planet-warming emissions."

"A massive die-off of pine trees in the southern Sierra Nevada caused by beetles attacking drought-stressed trees is turning forests brown and creating a fire tinderbox."

"In a highly anticipated announcement, the United States will offer a roughly 28 percent emissions cut as its contribution to a major global climate treaty nearing the final stages of negotiation, according to people briefed on the White House's plans."

"The United States will submit plans for slowing global warming to the United Nations early this week but most governments will miss an informal March 31 deadline, complicating work on a global climate deal due in December."