There are of fires across the Arctic Circle, in Greenland, Siberia, Scandinavia and Alaska. Smoke is from space. The Arctic is warming as fast as on Earth. It is also having its wildfire season . In Alaska, are 400 fires out of . People say the fires are unheard of in .
The fires could affect global . A scientist said: "Temperatures in the Arctic have been increasing at a faster than the global . Warmer encourage fires to grow." Dry , lightning and winds are spreading the . The fires are releasing and killing .