On Sea Level Rise, More Experts Lean Toward High End

Flooding on the Virginia coast. <a href="http://www.flickr.com/photos/usfwsnortheast/6097306728/sizes/l/in/photostream/">U. S. Fish and Wildlife Service - Northeast Region</a>/Flickr

Let our journalists help you make sense of the noise: Subscribe to the Mother Jones Daily newsletter and get a recap of news that matters.


If you want to imagine what the future, climate-changed world will look like, one of the biggest questions is by how much, exactly, the sea levels will increase. Rising tides have already become one of the most prominent climate change impacts, threatening coastal communities from Virginia to Palau and amplifying the damage of storms like Sandy. Estimates vary: 2007’s Intergovernmental Panel on Climate Change report pegged the figure at somewhere around a foot by 2100, while a December study from NOAA went as high as 6.6 feet. But a swath of recent studies put the estimate at around three feet, including a report out Sunday in Nature Climate Change. From NBC:

Melting glaciers in Antarctica and Greenland may push up global sea levels more than 3 feet by the end of this century, according to a scientific poll of experts that brings a degree of clarity to a murky and controversial slice of climate science. 

Such a rise in the seas would displace millions of people from low-lying countries such as Bangladesh, swamp atolls in the Pacific Ocean, cause dikes in Holland to fail, and cost coastal mega-cities from New York to Tokyo billions of dollars for construction of sea walls and other infrastructure to combat the tides.

“The consequences are horrible,” Jonathan Bamber, a glaciologist at the University of Bristol and a co-author of the study, [said].

While efforts to stem the rising sea, like reducing greenhouse gas emissions from burning fossil fuels, are always worth pursuing, in light of the mounting evidence for large-scale changes it seems prudent for more coastal cities to take a lead from places like New York and start preparing for a closer coastline.

More Mother Jones reporting on Climate Desk

THIS IS BIG FOR US.

And we won't beat around the bush: Our fundraising drive to finish our current budget on June 30 and start our new fiscal year on July 1 is lagging behind where we need it to be.

If you value the reporting you get from Mother Jones and you can right now, please consider joining your fellow readers with a donation to help make it all possible. Whether you can pitch in $5 or $500, it all matters.

If you're new to Mother Jones or aren't yet sold on supporting our nonprofit reporting, please take a moment to read Monika Bauerlein's post about our priorities after these chaotic several years, and why this relatively quiet moment is also an urgent one for our democracy and Mother Jones’ bottom line—and if you find it compelling, please join us.

payment methods

THIS IS BIG FOR US.

And we won't beat around the bush: Our fundraising drive to finish our current budget on June 30 and start our new fiscal year on July 1 is lagging behind where we need it to be.

If you value the reporting you get from Mother Jones and you can right now, please consider joining your fellow readers with a donation to help make it all possible. Whether you can pitch in $5 or $500, it all matters.

If you're new to Mother Jones or aren't yet sold on supporting our nonprofit reporting, please take a moment to read Monika Bauerlein's post about our priorities after these chaotic several years, and why this relatively quiet moment is also an urgent one for our democracy and Mother Jones’ bottom line—and if you find it compelling, please join us.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate