Why it matters: Five days short of August, extreme weather across multiple continents has proven deadly and costly as they upend precedent. Some, like the U.S. heat wave, are expected to continue into next month.
Black Americans born in the early 1960s typically have more than 300 African and 50 European ancestors dating back to when captive Africans arrived in North America in 1619, according to a new study using computational analysis of genetic data.
Why it matters: Many Black Americans who are descended from enslaved Africans have lacked ancestral information spanning several centuries. In a broad sense, the new research by USC and Stanford University could help shed light on their lineage.
