Wood from trees as high as the mountains can travel thousands of miles downriver to the Bay of Bengal as part of an ancient cycle that seems to be triggered by monsoons and other catastrophic events. (Christian France-Lanord/Université de Lorraine) At a Glance Scientists found that fresh wood can travel from its mountain home to settle deep in the ocean.Thousands of miles from land, the trees and the carbon inside them are covered by sediments.The research suggests the trees may...

A mysterious, massive algae bloom along the coast of Hawaii is linked to the 2018 eruption of Mount Kilauea. Here’s how it happened. ...

At a Glance Officials institute measures aimed at reducing pollution levels, which have hit a three-year high. The air quality index in New Delhi has topped dangerous levels.One official called the city a "gas chamber" because of the pollution. Smog blanketing India's capital got so bad over the weekend that pilots couldn't see to land their planes at New Delhi's international airport. Officials declared a public health emergency, and schools and colleges have been , according to CBS News. Private...