Evangeliou works at NILU – Norwegian Institute for Air Research http://nilu.no

“If larger fires would burn, they would actually have a substantial impact on melting,” Stohl said. And, there’s a greater chance of such fires, if more of Greenland’s permafrost melts and exposes peat —which is actually the early-stage material used in coal formation, and so it burns easily. https://www.livescience.com/62297-greenland-biggest-wildfire-warning-sign.html