Sea Level

First Methane Leak Found on Antarctic Sea Floor Confirms Researchers' Fears <p>The microbes aren't helping.</p> Sinead Baker, Business Insider ScienceAlert

Scientists have, for the first time, discovered an active leak of methane gas from the sea floor in Antarctica. It is a process that's likely to accelerate the process of global heating.

Lower Manhattan is vulnerable to flooding from storm surges and sea level rise.  John Taggart for The New York Times

CLICK HERE - RESEARCH - High Tide Tax - The Price to Protect Coastal Communities from Rising Seas (27 page .PDF report)

nytimes.com - by Christopher Flavelle - June 19, 2019

As disaster costs keep rising nationwide, a troubling new debate has become urgent: If there’s not enough money to protect every coastal community from the effects of human-caused global warming, how should we decide which ones to save first?

After three years of brutal flooding and hurricanes in the United States, there is growing consensus among policymakers and scientists that coastal areas will require significant spending to ride out future storms and rising sea levels — not in decades, but now and in the very near future. There is also a growing realization that some communities, even sizable ones, will be left behind.

Icebergs off coast of Greenland. - Credit: Kertu / Adobe Stock

CLICK HERE - STUDY - PNAS - Ice sheet contributions to future sea-level rise from structured expert judgment

cnn.com - by Sareena Dayaram - May 21, 2019

Global sea levels could rise more than two meters (6.6 feet) by the end of this century if emissions continue unchecked, swamping major cities such as New York and Shanghai and displacing up to 187 million people, a new study warns.

The study, which was released Monday, says sea levels may rise much faster than previously estimated due to the accelerating melting of ice sheets in both Greenland and Antarctica.

The international researchers predict that in the worst case scenario under which global temperatures increase by 5 degrees Celsius (9 degrees Fahrenheit) by 2100, sea levels could rise by more than two meters (6.6 feet) in the same period -- double the upper limit outlined by the UN climate science panel's last major report.

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CLICK HERE - STUDY - Union of Concerned Scientists - Underwater - Rising Seas, Chronic Floods, and the Implications for US Coastal Real Estate (28 page .PDF document)

ucsusa.org - June 2018

Sea levels are rising. Tides are inching higher. High-tide floods are becoming more frequent and reaching farther inland. And hundreds of US coastal communities will soon face chronic, disruptive flooding that directly affects people's homes, lives, and properties.

Yet property values in most coastal real estate markets do not currently reflect this risk. And most homeowners, communities, and investors are not aware of the financial losses they may soon face.

This analysis looks at what's at risk for US coastal real estate from sea level rise—and the challenges and choices we face now and in the decades to come.

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