"More than 170 governments declared an end to the fossil fuel era on Friday, using the signing ceremony for the landmark Paris agreement as an occasion to renew their vows to fight climate change."

"About 170 countries are expected to sign today in a move the UN hopes will ensure early ratification of the deal".

"Representatives from more than 150 countries will gather at the United Nations on Friday to officially sign a global accord aimed at slashing greenhouse gas emissions and slowing climate change. But in the four months since that historic pact was negotiated in Paris, a drumbeat of grim scientific findings has underscored that staving off the worst consequences of global warming may take far more aggressive actions."

"The Environmental Protection Agency has released a major upward revision to its estimates of total emissions of methane, a hard-hitting if short-lived greenhouse gas, in an annual inventory that the agency submits to the United Nations. The revisions will further up the stakes in a political battle over regulations that the agency is preparing to issue that could affect operations at thousands of oil and gas wells."

"Global warming attribution studies consistently find humans are responsible for all global warming over the past six decades."

"Ninety to 100 percent of climate scientists agree that the planet is warming due to human activity, according to a peer-reviewed paper published Wednesday in the journal Environmental Research Letters. The study, called a 'consensus on consensus,' synthesizes findings from prior published research."

"Texas is one of the states leading the fight against the Clean Power Plan. If you ask almost any statewide office holder they'll tell you the plan is bad for the economy. ... It may come as a surprise then, that energy companies here are not as unanimous in their opposition. That's because Texas' energy sector is transforming rapidly."

"Canada's longest — and most northern — coastline will soon have to combat vast challenges such as storms, floods, erosion and melting sea ice in the wake of climate change, according to a Natural Resources Canada report."

"William Gray, a pioneer in hurricane forecasting at Colorado State University and a skeptic of the science behind human-made global warming models, died on Saturday, the school said in a statement."

"Early start date would add momentum for deeper emissions cuts and lock a future US president into the deal for four years".