We know the oceans are warming, but we have fewer measurements in coastal waters where most fisheries and aquaculture operate. Now the fishing industry is helping scientists to track the changes.
Anya Waite (second from left) highlights the critical role of the ocean in regulating our climate, and the need to invest in observing oceans that store more than 90 per cent of all carbon, at COP27’s Earth Information Day event.
(The Global Ocean Observing System)
COP27’s agreement on observing the oceans sets a strong foundation for policymakers to invest in internationally linked observation that will help countries better monitor these carbon sinks.
The West African coastline is a source of livelihood for millions.
Wikimedia Commons/Paul Walter
Hurricane Fiona is the most devastating storm to hit Atlantic Canada. International collaboration between ocean measurement institutions is necessary to help efficiently plan responses to hurricanes.
A Canadian flag waves in the high winds in Dartmouth, N.S. on Sept. 24, 2022.
THE CANADIAN PRESS/Andrew Vaughan
Hurricanes don’t usually maintain high wind speeds as they make their way toward Atlantic Canada. But ocean warming may be linked to the increasing intensity of storms like Fiona.
Between zero and 2,000 icebergs reach Newfoundland each spring, but the warming climate could see an end to Iceberg Alley.
The exploitation of marine species worsens when the fish stock is shared by countries as opposed to when it is contained within a single exclusive economic zone.
(Shutterstock)
As the ocean temperature rises, many marine species are moving toward the north and south poles in search of cooler waters, thus rewriting the menus of seafood restaurants on the West Coast of Canada.
Tiny seashells draw carbon to the ocean floor when they die. This is the most significant geological process of carbon storage today, and it might increase in a warmer world, as it did in the past.
Sponges are ancient marine animals and have already shown robustness against stresses from climate change. New research now shows they can also tolerate low-oxygen conditions.
The ocean has been buffering us from the impacts of climate change, but it is reaching the limit of this capacity. Integrating ocean and climate policy will be crucial.
The latest climate change assessment by scientists is a ‘code red for humanity’, according to the UN.
Toa55/Shutterstock
Gemma Ware, The Conversation and Daniel Merino, The Conversation
How scientists are improving their understanding of the connection between extremes and climate change – and what’s to come. Listen to The Conversation Weekly.
A new analysis, using 15 years of autonomous underwater measurements and simulations from the latest global climate models, refined our estimate of future ocean warming and sea level rise.
Corals in the Persian Gulf are tough - they can withstand temperatures that would kill corals elsewhere. And there’s good news: it’s easy to cross-breed their heat-tolerance genes into other corals.
Australia may warm by 4°C or more this century, the IPCC has found. As these IPCC authors explain, there is no going back from some changes in the climate system.
Mark Gibbs, Australian Institute of Marine Science
The triple whammy of the moon’s wobble, sea level rise and more intense storms will bring worse tidal floods into coastal communities in the 2030s. This includes in Australia.
Morgan Pratchett, ARC Centre of Excellence for Coral Reef Studies
A study of 183 coral reefs worldwide quantified the impacts of ocean warming and acidification on reef growth rates. Even under the lowest emissions scenarios, the future of reefs is not bright.