27. maí Michael Mann -Dire Predictions: Understanding Climate Change / Stefan Rahmstorf – Rising Seas: How Fast, How Far?

The Past, the Future. How Fast, How Far?

– Threats Facing the Climate System

May 27th 13.00–17.00, in Háskólatorg (room HT-105), University of Iceland.


Guðni Elísson: “Earth2016”
Michael E. Mann: “Dire Predictions: Understanding Climate Change”
Stefan Rahmstorf: “Rising Seas: How Fast, How Far?”
Stefan Rahmstorf: “Is the Gulf Stream System Slowing?”
Michael E. Mann:“The Hockey Stick and the Climate Wars: The Battle Continues”
Michael E. Mann: “The Madhouse Effect: How Climate Change Denial is Threatening our Planet, Destroying our Politics, and Driving us Crazy”
Stefan Rahmstorf: “Extreme Weather: What Role Does Global Warming Play?”


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Guðni Elísson: “Earth2016”

Michael E. Mann: Dire Predictions: Understanding Climate Change”

This lecture will begin with a review of the now-solid evidence for a human influence on the climate of recent decades.  Such evidence includes instrumental measurements available for the past two centuries, paleoclimate observations spanning more than a millennium, and comparisons of the predictions from computer models with observed patterns of climate change.  The lecture will then address future likely impacts of human-induced climate change including possible influences on sea level rise, severe weather, and water supply.  The lecture will conclude with a discussion of solutions to the climate change problem.

Stefan Rahmstorf: Rising Seas: How Fast, How Far?”

Sea-level rise is one of the inevitable results of global warming, as warmer ocean waters expand and land ice is melting and adding water to the oceans. Observations show that the seas are indeed rising, and that the rise in the 20th Century is unique in the context of the previous millennia. However, more difficult to answer is the question of how fast and how far sea level will rise in the future. The billion-dollar-question is: How stable are the ice sheets on Greenland and Antarctica?

Stefan Rahmstorf: Is the Gulf Stream System Slowing?”

A slowdown or even collapse of the Gulf Stream System as a result of global warming has long been a concern of climate scientists and has fuelled the imagination of Hollywood. Regular direct observations of this giant ocean current system do not go back far enough to tell whether there is any long-term trend. However, in recent years indirect evidence is mounting for a remarkable slowdown over the 20th Century.