Ocean Heating and Acidification: Difference between revisions
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Moreover, projected climate velocities in the future (2050–2100) are faster for all depth layers, except at the surface, under the most aggressive GHG mitigation pathway considered (representative concentration pathway, RCP 2.6). This suggests that while mitigation could limit climate change threats for surface biodiversity, deep-ocean biodiversity faces an unavoidable escalation in climate velocities, most prominently in the mesopelagic (200–1,000 m). To optimize opportunities for climate adaptation among deep-ocean communities, future open-ocean protected areas must be designed to retain species moving at different speeds at different depths under climate change while managing non-climate threats, such as fishing and mining. | Moreover, projected climate velocities in the future (2050–2100) are faster for all depth layers, except at the surface, under the most aggressive GHG mitigation pathway considered (representative concentration pathway, RCP 2.6). This suggests that while mitigation could limit climate change threats for surface biodiversity, deep-ocean biodiversity faces an unavoidable escalation in climate velocities, most prominently in the mesopelagic (200–1,000 m). To optimize opportunities for climate adaptation among deep-ocean communities, future open-ocean protected areas must be designed to retain species moving at different speeds at different depths under climate change while managing non-climate threats, such as fishing and mining. | ||
=====Ocean Discovery Complicates Plans to Slash Climate Pollution===== | =====Ocean Discovery Complicates Plans to Slash Climate Pollution===== | ||
[https://www.bnnbloomberg.ca/ocean-discovery-complicates-plans-to-slash-climate-pollution-1.1446300 | |||
Bloomberg News 6/05/20 | Bloomberg News 6/05/20] | ||
Oceans have absorbed almost 40% of carbon dioxide humanity has emitted from fossil fuels since 1750, considerably slowing global temperature rise, but the forces that govern how much CO₂ disappears into the deep every year are unknown. The early 1990s saw a jump in this sponge-like capacity, followed by a significant slowdown until 2001, raising concerns that the ocean may not be able to help us out forever. | Oceans have absorbed almost 40% of carbon dioxide humanity has emitted from fossil fuels since 1750, considerably slowing global temperature rise, but the forces that govern how much CO₂ disappears into the deep every year are unknown. The early 1990s saw a jump in this sponge-like capacity, followed by a significant slowdown until 2001, raising concerns that the ocean may not be able to help us out forever. | ||
=====Global Temperature Anomalies from 1880 to 2018===== | =====Global Temperature Anomalies from 1880 to 2018===== | ||
[https://svs.gsfc.nasa.gov/4626?fbclid=IwAR2f7wjwlptMrQ_WojQXAb9YMCOWa6B-UD7H4evk9IXAAIUvcLqCIbCh7vs NASA 2/06/2019] | [https://svs.gsfc.nasa.gov/4626?fbclid=IwAR2f7wjwlptMrQ_WojQXAb9YMCOWa6B-UD7H4evk9IXAAIUvcLqCIbCh7vs NASA 2/06/2019] | ||
