Melting polar and glacial ice and thermally expanding ocean water have accelerated sea level rise to the highest rate in at least 6,000 years according to a new study in the Proceedings of the National Academy of Sciences. Using data from ancient sediment samples from around Asia and Australia, researchers looked back at 35,000 years of sea level history, finding that over the last 6,000 years little changed — until 150 years ago.
Sunrise in Juneau the morning of 8/2010: This is Douglas Harbor, Alaska.
Wednesday, October 15, 2014
SEA LEVEL RISES fastest in 6000 years!!!! New Study. (Global Warming is real!)
http://thinkprogress.org/climate/2014/10/15/3579893/sea-level-rise-faster-6000-years/
Melting polar and glacial ice and thermally expanding ocean water have accelerated sea level rise to the highest rate in at least 6,000 years according to a new study in the Proceedings of the National Academy of Sciences. Using data from ancient sediment samples from around Asia and Australia, researchers looked back at 35,000 years of sea level history, finding that over the last 6,000 years little changed — until 150 years ago.
Using indicators of the era’s sea level, like location of ancient
tree roots and mollusks, the scientists’ reconstruction found no
evidence that sea levels fluctuated by more than about eight inches
during the relatively stable period that lasted between 6,000 and about
150 years ago. Then, since the onset of the industrial revolution, sea
levels have already risen by about that same amount. The scientists
attribute climate change and rising temperatures that cause polar and
glacial ice to melt and thermal expansion of the oceans as the primary
cause for the rapid and extremely unusual increase in sea level. Water
expands as it warms, and there is enough warming water in the ocean to
cause a significant impact on sea levels.
Melting polar and glacial ice and thermally expanding ocean water have accelerated sea level rise to the highest rate in at least 6,000 years according to a new study in the Proceedings of the National Academy of Sciences. Using data from ancient sediment samples from around Asia and Australia, researchers looked back at 35,000 years of sea level history, finding that over the last 6,000 years little changed — until 150 years ago.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment