"Capping a day-long futurist fair and alternative music fest on the South Lawn of the White House on Monday, President Obama told actor Leonardo DiCaprio and atmospheric scientist Katharine Hayhoe 'we’re really in a race against time' to curb the worst affects of climate change."

"The choice between Hillary Clinton and Donald Trump holds U.S. climate policy, and the Paris agreement, in the balance."

"The Paris Agreement on climate change is expected to meet all criteria to enter into force Wednesday when the European Union submits its ratification papers to the United Nations."

"The Canadian prime minister, Justin Trudeau, said on Monday that Canada will impose a tax on carbon emissions starting in 2018 as part of its efforts to meet targets set by the Paris climate change accord."

"India, the world's third largest emitter of greenhouse gases, formally joined the Paris agreement on tackling climate change on Sunday, the United Nations said, taking the global pact a step closer to its enactment."

"A vigorously non-partisan commission, the SEC finds itself on Texas Republican's list of Exxon investigators he says are 'chilling' climate research."

"[Tuesday] was a good day for U.S. EPA, observers on both sides of a fierce legal struggle over the future of the Obama administration's landmark climate change rule conceded as they emerged from federal appeals court."

"Environment ministers from all 28 European Union states agreed on Friday to a fast-track, collective ratification of last year's U.N. Paris climate deal, the EU said."

"Florida health officials who have been testing thousands of residents for Zika virus said Wednesday they found another infection: dengue virus."

In a forthcoming paper, scientists say anaerobic decomposition of sediement and other organic material inundated by reservoirs emits a significant amount of greenhouse gases, mainly methane.