Climate change: the good and the astoundingly awful bad news
When discussing climate change, the old saying needs to be amended to “What do you want first, the somewhat good news, or the astoundingly awful bad news?”
The bad news is piling up fast:
* The ice sheets in the Artic, Antarctic and Greenland are melting twice as fast as earlier projections from just a year or two ago, which will lead to the sea level rising about a foot every 20 or 25 years – meaning a 3-foot rise by the end of the century, enough to wipe out some island nations, flood much of Bangladesh and other low-lying coastal countries, threaten many coastal cities around the world, and increase erosion on coasts.
* Glaciers are melting faster as well – meaning that before the end of this century, glaciers in the Himalayas may disappear, and these glaciers provide water for over a billion people, an environmental, agricultural and human catastrophe. This extra melting will first cause more floods in India and China, and then cause extreme water stress for humans and for agriculture.
* Previous estimates of the massive amounts of carbon dioxide and methane locked up in the permafrost were too small, increasing the likelihood of an unstoppable tipping point if too much of the permafrost melts and releases these greenhouse gases, potentially overwhelming any human efforts to slow and control carbon emissions.






