Scientists report natural hydrogen in Ontario rocks and 81% migratory fish decline
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Scientists in Canada have recorded hydrogen gas flowing from ancient rocks in Ontario mine boreholes. University of Birmingham researchers have developed a perovskite catalyst that splits water. A global report also found migratory freshwater fish populations fell roughly 81% since 1970, and thawing Arctic permafrost is releasing ancient carbon.
Key Facts
- Migratory freshwater fish populations fell roughly 81% from 1970 to 2026.
- Measurements from Ontario mine boreholes show natural hydrogen gas flowing from ancient underground rocks.
- University of Birmingham researchers developed a perovskite-based catalyst that splits water for hydrogen production.
- Thawing Arctic permafrost is releasing carbon locked for thousands of years and reshaping rivers.
- Industrial chemicals still permitted for use are leaking into the atmosphere and slowing ozone layer recovery.
Hydrogen and Fuel Advances
Canadian scientists recorded hydrogen gas flowing from ancient underground rocks at mine boreholes in Ontario on May 20. University of Birmingham researchers in the UK developed a perovskite-based catalyst that splits water, reported on June 2. Scientists are using sunlight to convert plastic waste into clean fuels such as hydrogen, an approach still in development.
Climate and Ecosystem Pressures
Migratory freshwater fish populations fell roughly 81% since 1970, a global assessment found. Thawing Arctic permafrost is reshaping rivers and releasing carbon that had been locked for thousands of years. Industrial chemicals still permitted under the Montreal Protocol are leaking into the atmosphere, slowing the ozone layer's recovery. Antarctic ice cores are revealing climate records stretching back 3 million years.
Pollution and Research Methods
Common nitrile and latex lab gloves contaminate microplastic samples, a University of Michigan study found. Antibiotics are accumulating in a major Brazilian river, with a banned drug detected in fish sold for food. Data from more than 80,000 great tits show extreme weather reduces nestling body mass after cold snaps and heavy rain.
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Scientists report natural hydrogen in Ontario rocks and 81% migratory fish decline
