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feral botanist
Veteran
Veteran

Joined: 5 Jul 2016
Gender: Male
Posts: 881
Location: in the dry land

04 Jan 2017, 10:32 pm

This is a pretty fascinating topic. If you do not believe in climate change, place start another thread to discuss that.

The warm currents allow people to grow palm trees in Scotland and grow trees in Tromsa Norway, which is about the same latitude as Barrow AK. Trees do not grow within 1000 miles of Barrow.

"Spewing too much carbon dioxide into the atmosphere could shut down the major ocean current that ferries warm water to the North Atlantic, new climate simulations suggest. While not as extreme as the doomsday scenario portrayed in the movie The Day After Tomorrow, such a shutdown could cause wintertime temperatures to plummet by an estimated 7 degrees Celsius or more in northwestern Europe and shift rainfall patterns across the globe.

Many previous climate simulations predicted that the Atlantic circulation would remain largely stable under future climate change. But those simulations failed to accurately portray how relatively freshwater flows between the Atlantic and Southern oceans, an important mechanism as the climate warms. After fixing that inaccuracy, Yale University climate scientist Wei Liu and colleagues set up an extreme climate scenario to test the current’s robustness. Doubling CO2 concentrations in the atmosphere shuttered the Atlantic current in 300 years, the researchers’ simulation showed."

https://www.sciencenews.org/article/war ... ent?tgt=nr