nature Magazine – September 21, 2023:  In this week’s issue, an estimate of global human exposure to air pollution from landscape fires (dominated by wildfires, but also including planned or controlled open land fires) between 2000 and 2019.

COVID boosters are back: what scientists say about whether to get one

As many countries head into autumn, they are targeting vaccinations at people in high-risk categories, leaving those at lower risk uncertain about what to do.

Libya floods: how climate change intensified the death and devastation

Climate change, civil war and international sanctions all contributed to the devastation caused by some of Libya’s worst flooding ever, researchers say.