Maanvi Singh in Los Angeles / THE GUARDIAN

Half of the US population has faced an extreme weather alert since 1 May and many more are likely to face risks from wildfires, flooding, tropical storms and extreme heat as summer begins. The Union…

Material from dry landscapes has surged since the 1800s, possibly helping to cool the planet for decades Dust that billows up from desert storms and arid landscapes has helped cool the planet for…