Climate change

Climate change and its effects are possibly the most important story of our time

The Guardian - Global heating made hot, dry and windy weather at least 20 times more likely in Spain and twice as likely in France, experts from the World Weather Attribution (WWA) consortium calculated. The finding is the latest to pin the blame for the continent’s sweltering and deadly summer firmly on the heating caused by the burning of oil, gas and coal.

The intense heatwave at the end of June, which is estimated to have killed 20,000 people, could not have happened without the extra heat trapped by carbon pollution, a previous WWA study showed. Another found that the climate crisis-driven heat was “sucking soils dry” as extreme drought spread across Europe…

This year’s wildfires in western Europe have been made worse by a wet winter and spring, which boosted the growth of vegetation, which then dried out and provided fuel for the fires – so-called whiplash conditions. Global heating is making winters wetter and summers drier and hotter in Europe.

Dr Clair Barnes, a research associate at Imperial College London and part of the WWA study team, said: “We’ve seen repeatedly how climate change increases hot, dry, flammable conditions that are extremely conducive to wildfires.

“What’s unique about [the July fires in Spain and France] is that it’s still early in the season – and with another heatwave looming, these findings are extremely scary. What we’re seeing is a clear sign of the escalating impacts of [human-caused] warming.”….

The wildfires have released huge plumes of toxic smoke. Dr Augustin Colette, at the French National Institute for Industrial Environment and Risks, said: “The smoke increased particulate [pollution] peak levels up to 20 times above what is considered ‘fair air quality’, and extremely poor air quality was felt up to 400 km away from the fires.” About 1.5 million people a year are estimated to have their lives shortened by wildfire smoke.

….The UN’s climate chief, Simon Stiell, said: “These European megafires show how fast climate-driven extreme heat and dry landscapes can turn wildfires into devastating national disasters. “Humanity continuing to burn colossal amounts of coal, oil and gas is making these conditions more dangerous, and these megafires more deadly and destructive,” he said. “But the solutions are equally clear: all countries must move faster from fossil fuels to renewables and protect people from worsening climate impacts, from wildfires, to megastorms and floods, to droughts hitting food production.”