Genomes from three species of Caribbean corals show how they survived past mass-extinction events caused by environmental change.
This summer, Tim Mentz Sr. took to YouTube to tell the world about the destruction of his cultural heritage. A former tribal historic preservation officer of the Standing Rock Sioux, Mentz wore a baseball cap, rimless glasses and two thin braids of graying hair. He was upset and spoke rapidly about the area behind him, an expanse of the Great Plains cut by a new 150-foot-wide road.
While shoppers scramble for Black Friday bargains this year, outdoor retailer REI is closing its 145 U.S. stores. This is the second consecutive year the Seattle-based company will ignore the frenzy that traditionally marks the start of the holiday shopping season. REI’s nearly 12,000 employees will get a paid holiday and will not process any online orders. Instead, REI exhorts workers and customers to get outside with family and friends. It has even coined a Twitter hash tag, #OptOutside, to promote the event.
When a forest disappears, vegetation on the other side of the world can feel significant effects, new research shows.
Since 1600, humans have influenced forest fire activity in California’s Sierra Nevada more than climate has, experts say.