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Thawing permafrost leaves traceable carbon footprint in Arctic rivers

Thawing permafrost leaves traceable carbon footprint in Arctic rivers

Science
May 7 (UPI) -- Researchers have found a way to measure the carbon released into Arctic rivers by thawing permafrost. Carbon is everywhere. It is also often on the move. But some carbon sources are sneakier than others. To better understand the planet's carbon budget and its influence on climate change, scientists must develop ways to more accurately track some of this sneaky carbon. When permafrost thaws, ancient carbon, sometimes frozen for hundreds of thousands of years, is freed up. As the planet continues to warm, more and more of this frozen carbon is escaping. But measuring this climate-carbon feedback is difficult. To better track the phenomena, scientists at Stockholm University decided to measure the radiocarbon signal of runaway carbon in large rivers. "Rivers transport carbon ...