Although ice-sheet disintegration and the subsequent sea-level rise lags behind rising temperatures, the process will become irreversible sometime in the second half of the 21st century unless something is done to reduce human emissions of greenhouse-gas emissions.  -   Jonathan Overpeck     Quotes
Although ice-sheet disintegration and the subsequent sea-level rise lags behind rising temperatures, the process will become irreversible sometime in the second half of the 21st century unless something is done to reduce human emissions of greenhouse-gas emissions. Jonathan Overpeck