"Climate change could threaten the distribution and prevalence of many key ocean species. New studies reveal that all aspects of a changing climate -- from ocean acidification in the Arctic to rising temperatures on the continental shelf in the Northeast -- could shake up the fishing industry both economically and ecologically in and around the United States."

"In a new study, scientists with the University of Alaska at Fairbanks and several other institutions report a staggering finding: Glaciers of the United States’ largest — and only Arctic — state, Alaska, have lost 75 gigatons (a gigaton is a billion metric tons) of ice per year from 1994 through 2013."

"As the steamy hurricane season descends on Miami, the city’s Roman Catholic archbishop, Thomas G. Wenski, is planning a summer of sermons, homilies and press events designed to highlight the threat that a warming planet, rising sea levels and more extreme storms pose to his community’s poorest and most vulnerable."

"Protesters in Washington, D.C. gathered outside of the National Museum of Natural History on Monday, urging the Smithsonian Institution to cut ties with noted climate denier David Koch, who sits on the museum’s board."

"Pope Francis makes an urgent call for protection of the planet and repeats his view that global warming is mostly man-made in his keenly awaited encyclical, according to a draft published by an Italian magazine on Monday."

"VATICAN CITY — Ban Ki-moon arrived at the Vatican with his own college of cardinals. Mr. Ban, the United Nations secretary general, had brought the leaders of all his major agencies to see Pope Francis, a show of organizational muscle and respect for a meeting between two global institutions that had sometimes shared a bumpy past but now had a mutual interest." A roundup of stories about the papal encyclical to be released Thursday.

"In a major report to be released Monday, the Paris-based International Energy Agency — which provides independent energy analysis and has 29 member countries, including the United States — will state that current national commitments to cut greenhouse gases are still insufficient to keep the world below two degrees Celsius of warming above preindustrial levels."

"Global warming has returned to Washington. An issue that Congress largely ignored since the death of climate and energy legislation five years ago has come back in a most unlikely place: the trade debate."

"For the first time in nearly 40 years, state regulators are telling more than 100 growers and irrigation districts with some of the oldest water rights in California that they have to stop drawing supplies from drought-starved rivers and streams in the Central Valley."