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A new study warns that climate change “velocity” in the deep ocean — the rate at which species’ range shifts in order to remain at their preferred temperature — is greater than at the surface even if we mitigate climate change, and particularly at depths below 600 and 3000 feet. Surface warming is not expected to change nearly as much as the warming at deeper layers in the ocean, causing different velocities in different layers of the ocean.
Why This Matters: The differences in water temperature increases at different depths in the water column could cause major disruptions in food webs as species that rely on each other for survival will have to adapt at different velocities, thus having major impacts on the distribution and abundance of ocean wildlife. The overall impacts could be catastrophic because marine life in the deep ocean will be threatened increasingly through the end of the century due to warming regardless of our actions now. Which makes it all the more important that globally we protect special areas in the ocean from other threats like mining and overfishing. And we must anticipate species shifts before creating marine parks in the high seas so they actually can protect critical species and habitat.
Tatiana Schlossberg reports for The Washington Post about the potential of seaweed to dramatically reduce methane emissions from cows. It turns out that Asparagopsis taxiformis and Asparagopsis armata — two species of crimson submarine grass — can reduce those emissions by 98% when just a small amount is added to their food. Now several companies are working […]
ABC News reports that there is a creeping underground invasion of our coasts, and it is moving inland much faster than had been previously thought, according to new research funded by the National Science Foundation. The stealth invader? Saltwater, which is infiltrating our coastal communities and creating unseen risks well in advance of the surface floods that drown our homes and businesses.
Why this Matters: This problem will become more and more common as climate change continues, causing widespread displacement across the world.
by Amy Lupica, ODP Contributing Writer According to a 2020 U.N. environmental report, seagrass “prairies” play a massive role in the health of the world’s oceans and if nothing is done to stop their decline, the world will face serious consequences. Seagrasses support rich biodiversity that sustains a whopping 20% of the world’s fisheries, and […]
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