Climate change made Siberia’s heat wave at least 600 times more likely
Extreme temperatures January to June 2020 led to wildfires, thawing permafrost and an oil spill
![Oil spill in Norilsk, Russia](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/07/071520_cg_arcticwarming_feat.jpg?fit=1030%2C551&ssl=1)
Thawing, unstable permafrost led to the collapse of a fuel tank in the Russian mining city of Norilsk on May 29, 2020, spilling at least 21,000 metric tons of oil. A cleanup operation deployed containment booms on the Ambarnaya River (shown on June 6).
Kirill Kukhmar/TASS/Alamy Live News