BREAK UP About a year ago, a massive iceberg calved off of Antarctica’s Larsen C ice shelf (left). Since then, it has stayed in the area (right), bumping up against an elevated ice promontory (star).
Joshua Stevens/NASA Earth Observatory
DRY TIMES A 200-year drought 4,200 years ago that caused civilizations to collapse across the globe marks the start of the newly designated Meghalayan Age. As seen in this photo from Algeria in 2017, droughts still occur during this ongoing geologic time period.
IN THE DEEP Healthy shallow reefs, like this one in Micronesia, are at increasing risk. Researchers previously hoped that species from these reefs could survive in deeper reefs, but new evidence shows this may not be the case.