Continuous observations in the North Atlantic challenges current view about ocean circulation variability

Kevin Kilty May 10, 2019 From Physics Today (April 2019 Issue, p. 19)1: The overturning of water in the North Atlantic depends on meridional overturning circulation (MOC) wherein warm surface waters in the tropical Atlantic move to higher latitudes losing heat and moisture to the atmosphere along the way. In the North Atlantic and Arctic…

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Study: Much of the surface ocean will shift in color by end of 21st century

Climate-driven changes in phytoplankton communities will intensify the blue and green regions of the world’s oceans From the Massachusetts Institute of Technology Climate change is causing significant changes to phytoplankton in the world’s oceans, and a new MIT study finds that over the coming decades these changes will affect the ocean’s color, intensifying its blue…

Study finds billion-year superocean cycles in Earth’s history

Curtin researchers believe that ancient supercontinents formed and then fell apart through alternating cycles spanning hundreds of millions of years that involved superoceans being swallowed and the restructuring of the Earth’s mantle. The research, published in science journal Precambrian Research, found the supercontinents assembled and broke up through alternating processes of ‘introversion’ and ‘extroversion’. The latter process…

What is warming the Earth?

Guest Post By Javier A no-assumptions look at the global warming evidence helps clarify the possibilities. The planet’s surface has been warming since the depths of the Little Ice Age, and particularly since ~ 1850 AD. The surface temperature record, however incomplete or uncertain, reflects this warming. Hypotheses about why the warming is taking place…