The planet could pass a key target on world temperature rise in about a decade, prompting accelerating loss of glaciers, steep declines in water availability, worsening land conflicts and deepening poverty, scientists said this week.
Last December, 195 nations agreed to try to hold world temperature rise to "well below" 2 degrees Celsius, with an aim of 1.5 degrees Celsius.
But the planet is already two-thirds of the way to that lower and safer goal, and could begin to pass it in about a decade, according to Richard Betts, head of climate impacts research at the U.K. Met Office's Hadley Centre.