25 Years of Satellite Data Shows Global Warming Is Accelerating Sea Level Rise (usnews.com)

An anonymous reader quotes a report from The Associated Press: Melting ice sheets in Greenland and Antarctica are speeding up the already fast pace of sea level rise, new satellite research shows. At the current rate, the world's oceans on average will be at least 2 feet (61 centimeters) higher by the end of the century compared to today, according to researchers who published in Monday's Proceedings of the National Academies of Sciences. Sea level rise is caused by warming of the ocean and melting from glaciers and ice sheets. The research, based on 25 years of satellite data, shows that pace has quickened, mainly from the melting of massive ice sheets. It confirms scientists' computer simulations and is in line with predictions from the United Nations, which releases regular climate change reports. Of the 3 inches (7.5 centimeters) of sea level rise in the past quarter century, about 55 percent is from warmer water expanding, and the rest is from melting ice. But the process is accelerating, and more than three-quarters of that acceleration since 1993 is due to melting ice sheets in Greenland and Antarctica, the study shows.

Comments

Sea level rise is small compared to biological ...

[140Mandak262Jamuna]

The annual deep frost would kill so much of the weeds and the bugs. As the climate changes, the USDA agricultural zones are changing. What used to be 3 is now 4 etc. Weeds that were killed every winter and start from the scratch, survive the winter, start early and spread fast. They even get two or three more generations per season.

The bugs too, are surviving winter. The most ardent climate change denying, conspiracy theory believing, Iowa farmer sees the forsythia blooming in February, tulips emerging in March, crocus in December... Some fields naturalized by daffodils and tulips are going the other way. The bulbs rotting away instead of emerging. These bulbs need six weeks of continuous freezing for them to "sense" the coming and going of winter. Without the frost, they dont emerge and they rot in spring rains.

One of the most productive agricultural belt is protected by annual frost. It has no natural defense against many of the deleterious organisms. All it takes is one fungus, one virus, one weed to afflict the Idaho potato crop or the corn or wheat... By the time we identify and mitigate the threat we would have lost two or even three years of loss of agricultural productivity. Affluent USA will suck the products from rest of the world, prices will shoot up beyond belief. Poor countries with unstable regimes will see societal collapse, mass migrations and refugees...

These consequences are far more dire, far more urgent than sea level rise. Sea level rise is important it will lead to very serious climate changes. But that is very indirect and direct cause - effect relations difficult to deduce, difficult to prove, difficult to explain to public.