Sentences with phrase «ocean over several centuries»
What they found was that local destabilization of the Amundsen Sea region of West Antarctica ultimately causes the entire ice sheet to fall into the ocean over several centuries to several thousands of years, gradually adding 3 meters to global sea levels, they report online today in the Proceedings of the National Academy of Sciences.
http://www.sciencemag.org/ Not exact matches
Inspection of the data reveal (not too surprisingly) large gaps is several areas of the oceans and I seriously doubt their conclusion that phytoplankton biomass declined by 40 % over the past century.
My opinion expressed elsewhere is that almost all the temperature changes we observe over periods of less than a century are caused by cyclical changes in the rate of energy emission from the oceans with the solar effect only providing a slow background trend of warming or cooling for several centuries at a time.