Roger Summons Professor Department of Earth, Atmospheric and Planetary Sciences, MIT E25-633, 45 Carleton Street Cambridge, MA 02139 USA
I am interested in biogeochemistry and geobiology with the following themes:
lipid chemistry of geologically significant microbes and microbially dominated ecosystems organic and isotopic indicators of climate change, biotic evolution and mass extinction...
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climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction climate change is the only cause of mass extinction...