Kelp forests around the world, and in Canada, are under threat. New research sheds further light on the health, and resilience, of these crucial ecosystems.
Kelp seaweed spores are being grown on small rocks and waste scallop shells as part of a trial exploring how to regenerate the UK’s coastal kelp forests.
To fight global warming we will soon have to try to remove carbon dioxide from the skies or find ways to reflect the Sun’s heat. Such radical paths must be examined, but risky experiments avoided.
The ocean twilight zone could store vast amounts of carbon captured from the atmosphere, but first we need a 4D monitoring system to ensure ramping up carbon storage does no harm.
Seaweed was thought to be a vital tool in the fight to slow climate change. But it turns out seaweed ecosystems may be a natural source of carbon dioxide – and not a sink.
Diane Kim, USC Dornsife College of Letters, Arts and Sciences; Ignacio Navarrete, USC Dornsife College of Letters, Arts and Sciences et Jessica Dutton, USC Dornsife College of Letters, Arts and Sciences
Making biofuels from crops grown on land poses trade-offs between food and fuel. A new study looks offshore.
Gemma Ware, The Conversation et Daniel Merino, The Conversation
A transcript of episode 5 of The Conversation Weekly podcast, including stories on the Arctic Ocean and new archaeological finds in Tanzania’s Olduvai Gorge.
Dan Smale, Marine Biological Association et Thomas Wernberg, The University of Western Australia
Marine heatwaves, like their land counterparts, are growing hotter and longer. Sea species in southeastern Australia, southeast Asia, northwestern Africa, Europe and eastern Canada are most at risk.
A chance discovery of some kelp that floated for 20,000km before washing up on an Antarctic beach has opened up a new chapter in our understanding of the currents that swirl around the Southern Ocean.