"Vessels continued to skim oil off the Gulf of Mexico on Saturday after about 88,200 gallons of oil were released from a Shell flow line about 90 miles off the coast of Louisiana."
Here are the latest leaked explainers, written by the Congressional Research Service, that may be of use to environmental journalists.
"After two years of improvement, America's honeybees had another tough and deadly winter, probably because of mites, according to a new federal survey released Tuesday."
"Alberta's unusually early and large fire is just the latest of many gargantuan fires on an Earth that's grown hotter with more extreme weather."
"A large and violent tornado hit an area south of Oklahoma City on Monday, causing at least two deaths and reducing at least three homes to splinters, authorities said."
"Repair crews were expected to assess wildfire damage to the Canadian energy boomtown of Fort McMurray on Tuesday as the oil sands companies surrounding the ravaged city looked at bringing production back on line."
"Good news hasn’t been easy to come by at Alberta’s emergency management centre. ... Finally, on Sunday, there was some relief."
"A catastrophic wildfire that has forced all 88,000 residents to flee Fort McMurray in Alberta, Canada exploded tenfold in size on Thursday, cutting off evacuees in camps and shelters north of the city."
"With a few neighborhoods already in ruins, worsening fire conditions Wednesday pushed walls of flames toward thousands of more homes in the northeastern Alberta town, in the heart of Canada's oil sands region."
"Federal prosecutors in Brazil filed a 155 billion-real ($43.5 billion) civil lawsuit on Tuesday against iron miner Samarco and its owners, Vale SA and BHP Billiton, for a collapsed tailings dam in November that killed 19 people and polluted a major river."
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