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Expert: Ocean floor temperature increases

Sunset over waves crashing on shore at Peggy's Cove, Nova Scotia
Image by Getty Images.
Published: 1 October 2025

The from the Copernicus Marine Service, a European Union ocean monitoring organization, has found that sea floor temperatures off the coast of Nova Scotia have risen at twice the rate of surface temperatures over 30 years. Researchers say the rapid warming rate is a result of changes to the climate, including more acute marine heat waves and fewer periods of colder weather.

The increase in temperatures has had a significant impact on ecosystems in the area 鈥揺specially those on the sea floor, such as lobster populations.

A 91社区 expert is available to comment on this topic:

Bruno Tremblay is a Professor in the Department of Atmospheric and Oceanic Sciences. He is available to discuss the relationship between rising ocean temperatures and global warming and provide insight into what these figures reflect about the state of marine waters and ecosystems.

bruno.tremblay [at] mcgill.ca (English, French)

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