Today's "Planet Earth Report" --"A Highly Altered, Degraded System" -Since 2016, Half of All Coral in the Great Barrier Reef Has Died

"Once upon a time, there was a city so dazzling and kaleidoscopic, so braided and water-rimmed, that it was often compared to a single living body. It clustered around a glimmering emerald spine, which astronauts could glimpse from orbit. It...