"Coal prices, already down 52 percent since 2011, are forecast to keep falling. The rout shows that exporters’ OPEC-like tactics of trying to squeeze out high-cost producers have been frustrated by the rising dollar."

"CARACAS, Venezuela — Mary Noriega heard there would be chicken."

"The head of the U.S. Environmental Protection Agency is scheduled to make a brief Vatican visit at the end of the week on the topic of addressing climate change."

"A tally of monarch butterflies wintering in Mexico rose to 56. 5 million this year from a record low of 34 million last year but conservationists said on Tuesday the increase was too slight to reduce the threat of extinction facing the insect."

"Government representatives from around the world agreed Saturday to develop the first legally-binding agreement to conserve marine life in the high seas and international seabed, an area covering roughly half the planet."

"A climate-change skeptic at the Harvard-Smithsonian Center for Astrophysics who has relied on grants from fossil-fuel energy interests apparently failed to disclose financial conflicts of interest in a newly released paper, according to a complaint by a climate watchdog group."

"India and America's declaration of a breakthrough in contentious nuclear energy cooperation has been met with a lukewarm response from industry and analysts. Few expect the potentially lucrative Indian market to suddenly become less complicated for U.S. nuclear companies."

"The ocean conservation group Sea Shepherd has been awarded €8.3m (A$11.8m) at Amsterdam’s annual Good Money Gala, saying it will use the funds to build a new ship and more effectively fight poaching."

"For years, scientists have documented the rapid retreat of Arctic ice, from melting glaciers in Greenland to shrinking snow cover in far northern Eurasia. Now researchers have discovered one Arctic ice cap that appears to be literally sliding into the sea."

"NEW DELHI — In the world’s most polluted city, a layer of smog hangs over everything, thicker year after year."