A 30-meter sediment core drilled off West Antarctica contains charcoal fragments showing that wildfires burned there about 90 million years ago, during the Cretaceous. Earlier work showed that the same region was a humid rainforest, and this is the southernmost evidence of fire yet found on Earth. Scientists confirmed the fires with microscopy, chemical markers and amber that formed on injured tree bark. Light reflecting from the burnt particles suggested the fires were low-temperature surface fires. Over time the landscape shifted from conifer forest to a peat bog dominated by sphagnum moss, and fires became more frequent during that change. Modern peat bogs in the Arctic show the same link between fire and open, boggy ground.

Israeli reports also say the cabinet directed the military to prepare for a possible new attack on Iran.

Angkor, near Siem Reap in northern Cambodia, was the capital of the Khmer Empire, which ruled much of mainland Southeast Asia between roughly the 9th and 15th centuries. At its height the city spread across about 3,000 square kilometres, making it the largest pre-industrial city on Earth by area. Its growth depended on water: huge reservoirs called barays, along with canals and embankments, stored monsoon rain and carried it to rice fields. That system let farmers harvest more than once a year and fed a very large population through the dry season. The temple complex of Angkor Wat, built in the early 12th century, is the best-known monument and still stands at the heart of the park.