Kelp forests fringe about a third of the world's coastlines in temperate and polar waters and are among the most biodiverse nearshore ecosystems, probably as biologically important as rainforests. The Great African Seaforest runs more than 1,300 kilometres from South Africa to Namibia and shelters animals such as the tuberculate cuttlefish, which escapes predators by releasing an ink cloud shaped like its own body while it jets off the other way. Yet less than 2% of kelp forests are meaningfully protected, and warming seas could wipe out up to 25 million hectares of them by 2050. Conservationists argue that giving each forest a name and an identity, as coral reefs and mangroves have, would draw the attention and funding they now lack.

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.