A infografia mostra a localização dos incêndios florestais no Ártico.


Incêndios sem precedentes no Ártico

By Duncan Mil

August 5, 2019 - Os incêndios que assolam partes do Ártico ameaçam acelerar a fusão
do gelo e do permafrost – a camada de solo permanentemente gelada – libertando gases de efeito de estufa armazenados há milhares de anos.

Although wildfires are frequent in the northern hemisphere between May and October, scientists estimate the magnitude of this season’s burn is higher than any other in the 16-year-record. Fires are burning farther north, and scientists worry the forest fires are igniting peat fires.

Peat stores large amounts of carbon, which is burning and releasing record amounts of carbon dioxide (CO2) into the atmosphere.

According to Mark Parrington, a senior scientist with Europe’s Copernicus Atmosphere Monitoring Service (CAMS), the fires have released approximately 100 megatons, 100 million metric tons, of CO2 since June. Since the start of June, CAMS has tracked over 100 intense and long-lived wildfires in the Arctic Circle.

As the planet warms, more and more frozen peat and permafrost has thawed, releasing large amounts of carbon. Now, fires are burning that stored carbon, releasing CO2 into the atmosphere.

PUBLISHED: 05/08/2019; STORY: Graphic News