The close of the warmest decade on record brought with it widespread, devastating wildfires from the Amazon to Indonesia, the Arctic Circle and Australia. Firefighting resources and expertise have long been shared between the Northern and Southern hemispheres, leveraging the fact that their hot, dry seasons occur at different times of the year. The U.S. and Australia count on many of the same firefighting aircraft, which make trips across the Pacific when called upon.

But climate change is contributing to longer fire seasons and more dangerous conditions, straining this global arrangement and forcing governments and fire services to take drastic action and rethink how fires are fought.

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