We are in an emergency. Wildfires are raging across the world as scorching temperatures and dry conditions fuel the blazes that have cost lives and destroyed livelihoods. The combination of extreme heat, changes in our ecosystem and prolonged drought have in many regions led to the worst fires in almost a decade, and come after the IPCC handed down a damning landmark report on the climate crisis. But technically, there are fewer wildfires than in the past – the problem now is that they are worse than ever and we are running out of time to act, as the Guardian's global environment editor, Jonathan Watts, explains.
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