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To adapt to climate change, people will move. The results will not be all bad

Protecting densely populated coastal areas, such as river deltas or megacities, from sea-level rise with dikes and seawalls will likely limit land loss and migration of people away from the coasts. But these protections are overlooked in most migration estimates. A new study predicts coastal protection could limit migration to 17 to 72 million people during the 21st century-less than half of some previous estimates. The study, published in Earth’s Future, AGU’s journal for interdisciplinary research on the past, present and future of our planet and its inhabitants, is the first to look at...

BBC News By Jonathan Amos image captionArtwork: Sentinel-6 carries an altimeter to measure the elevation of water surfaces The new satellite that will become the primary orbital tool for tracking sea-level rise is in excellent shape. Sentinel-6 "Michael Freilich" was only launched three weeks ago, but already it is mapping ocean features in exquisite detail. The dog kennel-shaped spacecraft is a joint endeavour between Europe and the US. It is the latest iteration in a series of missions that have been measuring sea-surface height going back to 1992. These earlier satellites have shown unequi...

news 'Dog kennel' satellite returns first ocean data © ESA Artwork: Sentinel-6 carries an altimeter to measure the elevation of water surfaces The new satellite that will become the primary orbital tool for tracking sea-level rise is in excellent shape. Sentinel-6 "Michael Freilich" was only launched three weeks ago, but already it is mapping ocean features in exquisite detail. The dog kennel-shaped spacecraft is a joint endeavour between Europe and the US. It is the latest iteration in a series of missions that have been measuring sea-surface height going back to 1992. These earlier satel...