CBC製作的Quirks and Quarks
CBC
分类: 科學與醫學
听听最后一集:
Canaries in the coal mine — a report on Canada’s bird life is an environmental report card
Using millions of observations, collected over 50 years, from bird watchers across the country, the conservation group Birds Canada and Environment and Climate Change Canada have released a report called The State of Canada’s Birds. The big takeaways are that many bird species, such as grassland birds and arctic birds, are in trouble because of climate change, damage to habitat and other causes. The good news is that where we’ve made efforts at conservation, such as with birds of prey and waterfowl, it’s working.
Ants farm fungus, and have been doing it since the dinosaurs died
Many species of ant grow fungus for food in their colonies, feeding it on plant matter and carefully cultivating it to protect it from disease. And a new study, led by Smithsonian researcher Ted Schulz, has determined that this has been going on for at least 66 million years, and probably evolved as a strategy to survive the environmental catastrophe that followed the asteroid impact that annihilated the dinosaurs. The research was published in the journal Science.
A Canadian group is exploring how to filter and destroy forever chemicals in our water
PFAS, a group of 15,000 synthetic chemicals that are also known as forever chemicals, are a tricky problem because they’ve spread everywhere and are hard to destroy. But a group from the University of British Columbia, led by chemical engineer Johan Foster, has found a way to efficiently capture the chemicals from water and break them down into harmless components. The research was published in the journal Nature Communications Engineering.
It’s two, two, two animals in one. Comb jellies can join their bodies together
Scientists studying a jellyfish-like animal called a ctenophore, or comb jelly, were shocked to discover that, when injured, two individual animals could fuse together. University of Colorado biologist Mariana Rodriguez-Santiago and her team found that the animals melded their nervous systems, and even their guts, while retaining individual features. The research was published in the journal Current Biology.
Using the sea to soak up our excess carbon dioxide
We’ve released 1.5 trillion tons of carbon dioxide into our atmosphere. We may slow our emissions, but the CO2 we’ve already released will warm our planet for thousands of years. Which is why scientists are now trying to understand how we might safely attempt to remove it on a vast scale. Journalist Moira Donovan explores research into marine carbon dioxide removal, and how scientists are trying to understand if we can fix a problem they’d hoped we’d never face. Moira speaks with:
Will Burt – Chief Ocean Scientist Planetary Technologies
Katja Fennel – Department of Oceanography, Dalhousie University, Halifax
Kai Schulz – Biological Oceanographer, School of Environment, Science and Engineering, Southern Cross University, Australia
Ruth Musgrave – Department of Oceanography, Dalhousie University, Halifax
以前的剧集
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631 - Can we dump antacids in the ocean to soak up carbon dioxide? And more. Fri, 18 Oct 2024
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630 - Quirks & Quarks presents Galactic Trailblazers: Renegade Women Wed, 16 Oct 2024
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629 - A Nobel for microRNA and more Fri, 11 Oct 2024
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628 - The FBI's chief explosives scientist deconstructs bomb forensic investigations and more... Fri, 04 Oct 2024
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627 - Plastic: We need to understand the problem and the solutions, and more Fri, 27 Sep 2024
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626 - An astronaut takes a birds-eye view of migration and more Fri, 20 Sep 2024
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625 - Science in the Field special. Catching up on the sights and sounds of what Canadian researchers did this summer Fri, 13 Sep 2024
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624 - Overheated Bonus Podcast -- a hostful behind-the-scenes chat Mon, 09 Sep 2024
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623 - Overheated - a Quirks & Quarks special about urban heat Fri, 06 Sep 2024
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622 - Quirks & Quarks is on hiatus for the summer. New podcasts will appear in September Fri, 28 Jun 2024
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621 - Listener Question show Fri, 21 Jun 2024
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620 - The age of monotremes, Third thumb, bird dream sounds, astronaut health database, aging and exercise, and sound perception Fri, 14 Jun 2024
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619 - The pursuit of gravity, and more… Fri, 07 Jun 2024
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618 - Killer whales are ramming boats for fun, and more... Fri, 31 May 2024
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617 - The risks and benefits of pandemic virus research and more… Fri, 24 May 2024
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616 - Sounds and smells of nature, and more... Fri, 17 May 2024
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615 - Why the famous Higgs particle plays the field and more… Fri, 10 May 2024
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614 - Quirks & Quarks goes to the dogs -- a dog science special Sat, 04 May 2024
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613 - Tiny black holes that could smash through our planet, and more… Fri, 26 Apr 2024