"The Bulletin of the Atomic Scientists says Earth is now closer to human-caused doomsday than it has been in more than 30 years because of global warming and nuclear weaponry. But other experts say that's way too gloomy."

"Hours after the death of Saudi Arabia’s ruler, his successor, King Salman, moved quickly on Friday to project a sense of continuity, saying in a televised address that the oil-rich nation, a Western ally that has long played a dominant role in Arab politics, would not change course."

"Nearly 50 environmentalist organizations sent a letter Wednesday to every member of Congress, urging them to oppose granting President Barack Obama 'fast-track' authority to pass new free trade deals."

"German utility E.ON's breakup has led to worries that funds set aside for decommissioning reactors will not suffice, but globally the cost of unwinding nuclear is uncertain as estimates range widely."

"Pope Francis, who pledged on the day of his installation as pontiff to make the environment a priority, is drafting a highly anticipated encyclical on ecology and climate change."

"Last year was the hottest on earth since record-keeping began in 1880, scientists reported on Friday, underscoring warnings about the risks of runaway greenhouse gas emissions and undermining claims by climate change contrarians that global warming had somehow stopped."

"Pope Francis said on Thursday he believed that man was primarily responsible for climate change and that he hoped this year's Paris conference would take a courageous stand to protect the environment."

"The Organization of the Petroleum Exporting Countries issued a report on Thursday that downgraded demand for its crude for 2015, while also predicting slower oil-production growth in the United States."

"ROME (Thomson Reuters Foundation) - Human activity has pushed the planet across four of nine environmental boundaries, sending the world towards a "danger zone", according to a study published on Thursday in the journal Science."

"A team of scientists, in a groundbreaking analysis of data from hundreds of sources, has concluded that humans are on the verge of causing unprecedented damage to the oceans and the animals living in them."