The wildfires can burrow into rich organic material, such as the vast peatlands that ring the Arctic, and smolder under the snowpack throughout the frigid winter.
Abnormally hot May weather resembles midsummer with air temperatures as high as +35C.
Fairbanks' May 10 temperature was two degrees below the daily record, while snow melt from an above-normal year is flooding Interior rivers.
Ketchikan became the first city in Alaska to hit 80 degrees this year on Saturday, as three other cities in Southeast Alaska also set temperature records.
With Russia on Covid-19 lockdown, 77 houses were burned down in Novosibirsk and Kemerovo regions.
Ecologist fears the Macleay River may take decades to recover, with heavy rains likely to affect other waterways
Tens of thousands of livestock and hundreds of unique bee hives have been destroyed on South Australia's Kangaroo Island along with thousands of koalas and kangaroos.
Mitchell Lyons captured video of a mob of kangaroos travelling at high speed to escape wildfires during the extreme 2019 Australian wildfire event.
Residents fled toward the waterside as winds pushed an emergency-level wildfire towards their homes. The town was shrouded in darkness from the smoke before turning an unnerving shade of bright red.
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