Mass tourism threatening Venice lagoon

An Italian environmental group warned that mass tourism is slowly eroding the Venice lagoon, which it said is also threatened by major real estate development and an inadequate transport network.

Northwest Coast of Madagascar

The Betsiboka Estuary on the northwest coast is the mouth of Madagascar’s largest river and one of the world’s fast-changing coastlines. Nearly a century of extensive logging of rainforests and coastal mangroves has resulted in nearly complete clearing of the land and dramatic rates of erosion. Astronauts describe their view of Madagascar as “bleeding into the ocean.”

Hundreds of Barrier Islands Newly Identified in Global Survey

Earth has 657 more barrier islands than previously thought, according to a new global survey by researchers from Duke University and Meredith College. Barrier islands help protect low-lying mainland coasts against erosion and storm damage, and can be important wildlife habitats.

Arctic’s Icy Coastlines Retreat as Planet Warms

The coastline in Arctic regions reacts to climate change with increased erosion and retreats by half a metre per year on average. Less sea ice means more open water, which means stronger waves generated by wind. These, in combination with warming temperatures and more storms, mean more erosion of coastlines. Rising sea levels are also expected to enhance erosion.