Earth’s Climate Enters Uncharted Waters

climate change

Andrew Glikson: Doubts are often raised among climate scientists whether the Greenland and West Antarctic ice sheets can survive the 1.8 – 4.0 C temperature rises projected by the IPCC-2007, leading to meters-scale sea level rise.

The Shift in State of the Atmosphere

Microsoft Word - THE SHIFT IN STATE OF THE ATMOSPHERE-A.doc

Andrew Glikson: The release to the atmosphere and oceans of hundreds of billions of tons of carbon from fossil biospheres, at the rate of >2 ppm CO2 per year, is
unprecedented in geological history of Earth, excepting events such as asteroid impacts which excavated and vaporized carbon-rich sediments, interfering with the carbon and oxygen cycles, which led to mass extinction of species.

CO2, Mass Extinction of Species, and Climate Change

1.  The terrestrial atmosphere as “lungs of the biosphere” – an analogy.

Andrew Glikson: Lost all too often in the climate debate is an appreciation of the delicate balance between the physical and chemical state of the atmosphere-ocean-land system and the evolving biosphere, which controls the emergence, survival and demise of species, including humans.

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