Climate change worsening heatwaves, air quality: UN

Climate change is driving more intense and more frequent heatwaves, which in turn generate a "witch's brew" of pollutants, threatening the health of humans and other living things, the UN warned Wednesday.Researchers meanwhile widely agree that climate change is causing more intense and more frequent heatwaves, and that this in turn is leading to a growing risk of more severe wildfires, WMO said.