Scientists behind a landmark study of the links between oceans, glaciers, ice caps and the climate have delivered a stark warning to the world: slash emissions or watch cities vanish under rising seas, rivers run dry and marine life collapse.
for more than 1.3 billion people living in low-lying or high mountain regions.
Thawing permafrost in places such as Alaska and Siberia could release vast quantities of greenhouse gases, potentially unleashing feedback loops driving faster warming. Following a subsequent report published last month on land use and farming, the IPCC Special Report on the Oceans and Cryosphere — or 'frozen world' — was the final piece in a scientific jigsaw revealing the global sweep of climate impacts.
"If we aren't able to have ambitious action that enables us to reduce greenhouse gas emissions, we will have these high-end impacts," said Nerilie Abram, a paleoclimatologist at the Australian National University, and an author of the study."We're at a point where we have a decision to make," she said.
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