A new bullet train debuted in China that is made to withstand temperatures up to minus 40 degrees Fahrenheit. ...

At a Glance Warming global temperatures are making wildfires more destructive.Smoke from those blazes is making up an increasing share of a dangerous air pollution.The study said increased forest management to prevent fires could have big health benefits. Smoke from wildfires has made up as much as half of small particle air pollution in the western United States in recent years and as much as a quarter in other parts of the country, according to a new study. The study...

At a Glance The storm has dumped rain and snow across the northern part of England and parts of Wales. Residents of a two retirement villages were stranded by floodwaters and had to be rescued.A pileup shut down southbound lanes of the M5 motorway. Flooding across the United Kingdom from Storm Christoph forced more than 2,000 homes to evacuate and threatened a facility where a COVID-19 vaccine is bottled. Emergency crews worked through the night to keep water away from...