Seven countries have agreed to stop targeting cod on the offshore fishing ground to let stocks recover, with compensation for crews and a scientific review each year.
Scientists from five countries spent three weeks on the ice in the Andes, using radar and drones to measure its thickness, and found it has lost a fifth of its area in 20 years.
Divers from the Tavua Reef Institute have planted more than 90,000 coral fragments over six years, and fish numbers on the restored sections are approaching those of healthy reefs nearby.
The two hill towns are restricting access to residents, deliveries and emergency vehicles, and visitors will park outside the walls and walk or take an electric shuttle.
A new consortium of grid operators plans a meshed network of subsea cables linking offshore wind farms across the North Sea, so surplus power from one coast can flow to another when the wind drops.
Member states of an international maritime body have backed seasonal slow-speed areas along whale migration corridors in the North Atlantic, asking ships to cut speed to 10 knots where humpbacks gather.
Volunteers at Fenwick Point are among more than 200 sites counting and ringing migrating birds this autumn, building a picture of the journeys made by waders and songbirds.
Researchers from the Wrenhaven Marine Institute are part of an international team following a newly calved iceberg roughly twice the size of the city as it drifts away from a West Antarctic glacier.
Velde, the small inland town twinned with Wrenhaven, now produces as much electricity as it uses over a year from a solar park owned by its own residents through an energy cooperative.
