By Nick Golledge for The New York Times
With the ocean warming, the Antarctic ice sheet is more susceptible to melt because so many of that sea level rise rests on the bedrock below.
We are very hopeful that the ice that has been lost in West Antarctica during the last few decades will exceed any mass gain attributable to snowfall.
We also trust that much of this loss is attributable to increased below-sea-level ice melting, driven by warming sea water.
The extent of that development depends to a large extent on how far we can both reduced energy greenhouse gas emissions at this moment.
That is encouraging because each assessment report produces new writers with varied expertise.
Every individual comment had to be answered by the author’s team, written answers given and adjustments to the text carefully noted and followed up.
Although some aspects of AR6 are new, the underlying message is unchanged.