Thick smoke rises from a peat bog fire in June 2023. Bernd Wüstneck/picture alliance via Getty ImagesThe blanket of wildfire smoke that spread across large parts of the U.S. and Canada in 2023 was a wake-up call, showing what climate change could feel like in the near future for millions of people. Apocalyptic orange skies and air pollution levels that force people indoors only tell part of the story, though. As global temperatures rise, fires are also spreading farther north and into the Arctic