Sea-Level Rise: Bubble, Bubble, GigaTons of Methane Trouble | Paul Beckwith

Methane and Sea-Level Rise

GR: Climate Scientist, Professor Paul Beckwith, who you may know from his frequent YouTube posts, believes that current climate-change model predictions of sea-level rise make incorrect assumptions and dramatically underestimate rise.

Beckwith has convincingly argued that all the positive feedbacks, especially from exponential increase in methane released by warming sea floors and melting permafrost will increase sea level by seventy feet by 2070. This is about 68 feet more than the model predictions that motivated the Paris Accord.

Let me repeat my warning that if we don’t act immediately, the climate-change equivalent of an approaching fire storm will reach us soon. We are approaching (and might have passed) that point on our roller coaster ride when we inch over the crest and begin our unstoppable acceleration toward the bottom–a bottom where the rails end. Talk, petition, write, call, march, and vote.

Beckwith provides clear discussions of global warming. I recommend you subscribe to his YouTube channel. Here are some of Dr. Beckwith’s recent videos and discussions.

“Vast amounts of methane exists within ocean floor sediments on the Eastern Siberian Arctic Shelf, in the form of methane hydrates & free methane gas.

“Up to recently, gas release to the shallow water column (50 meters deep) and atmosphere has been slow, with the subsea permafrost acting as a million corks on a million champagne bottles to contain the methane.

“Now, rapid thawing of the permafrost has released 10% of the corks, allowing rapid ongoing increases in methane release.

–Paul Beckwith (Bubble, Bubble, GigaTons of Methane Trouble | Paul Beckwith, Climate System Scientist)

Rising Seas – Interactive: If All The Ice Melted

Explore the world’s new coastlines if sea level rises 216 feet.

“There are more than five million cubic miles of ice on Earth, and some scientists say it would take more than 5,000 years to melt it all. If we continue adding carbon to the atmosphere, we’ll very likely create an ice-free planet, with an average temperature of perhaps 80 degrees Fahrenheit instead of the current 58” (Source: ngm.nationalgeographic.com).

GR:  Just in case you haven’t seen this.

Current Sea Level Rise is Faster Than at Any Time in Last 6,000 Years

Clearly, we are changing Earth’s climate at an unprecedented rate. It’s hard to predict how this will change human society. The possibilities are discussed in the next post from xraymike79. Important reading.

robertscribbler

Antarctica October 14

(NASA satellite shot of Antarctica on October 13 of 2014. Recent scientific papers point toward a vicious cycle of Antarctic glacial melt. Expanding sea ice results from increased cold, fresh water outflows from melting land-anchored glaciers spreading out along the ocean surface and protecting the floating ice. Meanwhile, rapidly warming waters concentrate in a layer beneath the ice to further accelerate melting of the giant glaciers’ bases. Image source: LANCE-MODIS.)

With fewer and fewer logical straws to grasp for plausibly denying an obvious and inexorable warming of the global climate system, climate change deniers have resorted to pointing toward an expanding veil of sea ice near Antarctica as ‘proof positive’ that global warming really isn’t happening.

But recent scientific papers reveal that what may well appear to be a soothing light at the end of an imaginary cooling tunnel is more a freight train of global heat aimed directly…

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Flooding Risk From Climate Change, Country by Country

A new analysis of sea levels and flood risk around the world offers more evidence that the brunt of climate change will not be borne equally.

 

More than a quarter of Vietnam’s residents live in areas likely to be subject to regular floods by the end of the century.  Globally, eight of the 10 large countries most at risk are in Asia.  These figures are the result of a new analysis of sea levels and flood risk around the world, conducted by Climate Central and based on more detailed sea-level data than has previously been available.  The analysis offers more evidence that the countries emitting the most carbon aren’t necessarily the ones that will bear the brunt of climate change.  

Tags: Southeast Asia, water, disasters, urban ecology, coastalclimate change

Source: www.nytimes.com

GR:  The cost of these and other consequences of global warming will not be born by the few growing rich on the industries causing the problems. The cost will be born by the people working to produce the profit.