The devastating rise in Alaska’s wildfires is making global warming even worse than scientists expected, US government researchers said on Wednesday.
The sharp spike in Alaska’s wildfires, where more than 5 million acres burned last year, are destroying a main buffer against climate change: the carbon-rich boreal forests, tundra and permafrost that have served as an enormous carbon sink.Northern wildfires must now be recognised as a significant driver of climate change – and not just a side-effect, according to the report from the US Geological Survey. Source: Spike in Alaska wildfires is worsening global warming, US says | Environment | The Guardian