"New rules limiting emissions from U.S. power plants that are expected to be proposed on Friday will 'provide certainty' to the coal industry, environment and energy chiefs told lawmakers anxious about the fuel's future."

"With the annual pullback of Arctic Ocean sea ice at an end, it’s clear that this year’s retreat is nowhere near the satellite-era record set in 2012, but it’s also clear that there is still a long-term trajectory toward a largely open-water Arctic in summers in coming decades."

"NORMANBY ISLAND, Papua New Guinea -- Katharina Fabricius plunged from a dive boat into the Pacific Ocean of tomorrow."

"About eight in 10 stories contain some discussion of uncertainties and risk, according to Oxford analysis"

"Drilling for shale gas through hydraulic fracturing, or fracking, appears to cause smaller leaks of the greenhouse gas methane than the federal government had estimated, and considerably smaller than some critics of shale gas had feared, according to a peer-reviewed study released on Monday."

"Top executives with [Canada's] insurance sector — which suffered losses of more than $2 billion in southern Alberta’s recent floods — unanimously agree Canada will see more such disasters due to intense rains caused by climate change, making comprehensive flood insurance unavailable to homeowners."

"It was supposed to be a few days of relative bipartisan bonhomie in the Senate: A modest but popular energy bill was on the floor. Though senators may have faced a tough vote or two on U.S. EPA rules or the Keystone XL pipeline, the bill was expected to make it across the finish line, demonstrating that at least one chamber of Congress could function."

"House Republicans have snagged high-profile witnesses for a Sept. 18 hearing on the White House's new climate plan: Environmental Protection Agency Administrator Gina McCarthy and Energy Secretary Ernest Moniz."

"Some parts of nature and human society are more vulnerable than expected to climate change, according to a draft of a U.N. report that adds a new purple color to a key diagram to show worsening risks beyond the red used so far."

"Scientists watching Antarctica's Pine Island Glacier from space have noticed with some alarm that it has been surging toward the sea."

"This month, the Environmental Protection Agency will propose standards that will establish stricter pollution limits for gas-fired power plants than coal-fired power plants, according to individuals who were briefed on the matter but asked not to be identified because the rule was not public yet."

"If the 50 dirtiest power plants in the United States were their own sovereign country, they would qualify as the seventh-biggest polluter in the world, according to a new report released on Tuesday. Those power plants alone emit more than all of South Korea or Canada."

"As the State Department drags out the approval of the Keystone XL pipeline, it is more likely President Barack Obama's final decision on the project to help link Canada's oil sands to U.S. refineries will slip into 2014, experts said."

"Publishers producing high school biology textbooks that could be used in classrooms across Texas are being pressured to water down lessons on evolution and climate change, a progressive watchdog group said Monday."

"MILWAUKEE -- Placing water retention structures in the St. Clair River may not be enough to counteract the effects of a warming climate and raise Lakes Huron and Michigan to their normal levels, experts said Monday."