"Getting the world’s governments to reach a global agreement at the United Nations’ climate conference in Paris is going to require careful politics, but the effort may be up against an even tougher challenge: mathematics."

"This time, it's a hotter, waterier, wilder Earth that world leaders are trying to save."

"As world leaders converge on Paris for historic climate talks, a coalition of governments and private investors is preparing to launch major research initiatives that seek to pour billions of dollars into an urgent search for solutions to global warming."

"When the government said they couldn’t march, activists covered the Place de la République with shoes—and an estimated 10,000 people gathered to form a human chain."

"PARIS — President Obama and more than 100 world leaders will convene with thousands of diplomats on Monday on the outskirts of Paris to open two weeks of intense negotiations aimed at forging an accord that could begin to avert the most devastating effects of global warming and redefine the economy of the 21st century."

"US president salutes French people for going ahead with crucial climate talks in his address to heads of state on first day of the conference".

"The cuts ushered in a five-year hiatus in peer-reviewed publication by its scientists and the era when the company first embraced disinformation."

"Two new reports underscore how important Paris climate talks could be for accelerating efforts to end deforestation, a major contributor to climate change."

"Another scientific analysis has debunked the theory that global warming stalled 15 years ago. A similar finding by U.S. government scientists is at the center of a months-long probe led by Texas Republican Rep. Lamar Smith, chairman of the House science committee."

"The destruction of Brazil's Amazon forest, the world's largest intact rainforest, increased by 16 percent in 2015 from a year ago as the government struggles to enforce legislation and stop illegal clearings."