Sea-level Rise Predictions

nyti.ms/2DPxUmt

 


 

Since the 1980s computer model projections of climate change have underestimated this event. With greater advances in our understanding of the greenhouse’s effect on environmental change we have been able to make what scientists believe to be more accurate projections. However, recent radar studies of Antarctic ice mentioned in this New York Times article show there are likely more factors we are not aware of.

In this case we learn that warming ocean waters have created a huge cavity beneath one of Antartica’s ice sheets. Since most of this sheet lies above the ocean, if and when it breaks off, it could raise sea-level by as much as two feet within a short period of time–threatening coastal cities and many islands across the world.

As many environmental scientists have proposed, climate change might reach thresholds (i.e., tipping points) where unanticipated sudden catastrophic events might occur.

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