A new study raises the probability of an AMOC shutdown this century to 50%. This comes from taking a closer look at interactions involving the temperature of surface waters in the Labrador Sea, which are subject to rapid changes that are followed by unusual feedback effects. The study provides independent support for similar claims recently made by James Hansen’s group.
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Melting of Canadian glaciers has rapidly accelerated. There was an astonishing 900% increase in surface melt in the decade ending in 2015, making the result a major contributor to global sea level rise for that period. Canada holds 25% of all arctic ice, second only to Greenland. That suggests an ultimate potential for adding over seven feet to sea level if fully melted.
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How scientists are studying the way mountain glaciers melted at the end of the last ice age. One primary objective is to establish correlations between melting activity and changes in CO2 level that have already been discovered by other means. They are finding a strong fit. “If ice is so really regulated by CO2, then we would certainly have to face the reality that we already have committed to absurd amounts of sea level rise.”
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How plants and animals become climate refugees. Many studies confirm that this is happening. This story provides some examples of the difficulties that are encountered, often with disastrous results:
—–Here is one more example, with a focus on several kinds of birds:
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Oil drilling in the Barents Sea will set records this year. These waters are controlled by the Norwegian government, which has given its approval for more drilling, motivated by a recent large discovery. This is sad because Norway has otherwise been a global leader in setting up programs that aim to completely eliminate carbon emissions. It is also sad that one big oil company says it has reduced its breakeven point for new exploration in the area from $80 to $35 per barrel, giving it plenty of profit incentive at today’s prices.
Carl