Saturday, 24 April 2021

Ocean 'Weather'

Ocean currents, termed eddies, can be between 10 and 100 km in width. These powerful flows have been likened to weather events. In the seas, rather than the atmosphere. A study, in Nature Climate Change, analysed temperatures and heights throughout the Southern Ocean between 1993 and 2020 (https://www.theguardian.com/environment/2021/apr/23/changes-to-giant-ocean-eddies-could-have-devastating-effects-globally). The study found the eddies were progressively intensifying, especially in areas where they were already stong. Worryingly, the data suggests the changes will impair the Southern Ocean's ability to absorb carbon dioxide. This Ocean is actually one of the planet's largest carbon sinks. Bad news for people who hope to limit climate change?
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Flowers of Oahu 64. Wikstoemia uva-ursi or Akia

The bark, roots and leaves of this plant release a narcotic that was used to stun fish.

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