Arctic tundra in Siberia
Shutterstock / Andrei Stepanov
Arctic tundra emits more carbon dioxide and other greenhouse gases than it absorbs. Due to climate change, the increase in temperature has changed the effect of the ecosystem on the planet: it has gone from helping to cool the Earth to a warming effect.
“It’s a really big change,” he says The Long Moon Colorado at the National Snow and Ice Data Center. “Human-caused warming is now causing natural warming. It is irreversible for thousands of years. “…
