Research Summary
70% of the Earth is covered by water, so information about the marine environment is vital in understanding how the Earth's surface system works. Nick McCave's research looks at perturbations in the deep oceans, using evidence from micro-fossils combined with carbon dating, to obtain information on pre-historical climate change. It is important to understand the normal cycles of climate change, in order to assess the degree to which the global warming we are experiencing now is caused by man, and the likely consequences by analysis of past analogues. One problem is the interaction between atmospheric climate change and the observed changes in the ocean currents. There is a 'chicken and egg' question: are the perturbations seen in atmospheric CO2 concentrations forced by the vigour of the deep ocean currents, or vice versa?
McCave uses monitoring points in the North Atlantic Ocean, Pacific Ocean and Indian Ocean to study how the Earth’s meridional heat flux is distributed by warm surface-ocean currents and cold deep-ocean currents.
Read more about this topic: Nick Mc Cave
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