Climate

Cape Town, South Africa

meetingoftheminds.org - by Manohar Patole - April 3, 2018

The growth of urban settlements is subject to a range of factors influenced by demographic, economic, political, environmental, cultural, and social factors. Weather variability, or climate change, has recently risen up this list. These two factors: climate change and urban population growth, are dramatically affecting urban water management. On one hand, growing populations increase urban water demand and on the other, climate change has increased water variability (volume, distribution, timing and quality) . . . 

 . . . How will cities adapt? Reframe. Develop new responses.

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FILE PHOTO: Uninhabitable apartments, in danger of collapsing into the Pacific Ocean, line Esplanade Ave. in Pacifica, California January 26, 2016. REUTERS/Noah Berger/File Photo

CLICK HERE - STUDY - Committed sea-level rise under the Paris Agreement and the legacy of delayed mitigation action

reuters.com - Alister Doyle - February 20, 2018

Sea levels will rise between 0.7 and 1.2 meters (27-47 inches) in the next two centuries even if governments end the fossil fuel era as promised under the Paris climate agreement, scientists said on Tuesday.

Early action to cut greenhouse gas emissions would limit the long-term rise, driven by a thaw of ice from Greenland to Antarctica that will re-draw global coastlines, a German-led team wrote in the journal Nature Communications . . .

 . . . By 2300, the report projected that sea levels would gain by 0.7-1.2 meters, even if almost 200 nations fully meet goals under the 2015 Paris Agreement, which include cutting greenhouse gas emissions to net zero in the second half of this century . . . 

Changes in sea level observed between 1992 and 2014. Orange/red colors represent higher sea levels, while blue colors show where sea levels are lower.

CLICK HERE - STUDY - PNAS - Climate-change–driven accelerated sea-level rise detected in the altimeter era

cnn.com - by Brandon Miller - February 13, 2018

Sea level rise is happening now, and the rate at which it is rising is increasing every year, according to a study released Monday in the Proceedings of the National Academy of Sciences.

Researchers, led by University of Colorado-Boulder professor of aerospace engineering sciences Steve Nerem, used satellite data dating to 1993 to observe the levels of the world's oceans.

Using satellite data rather than tide-gauge data that is normally used to measure sea levels allows for more precise estimates of global sea level, since it provides measurements of the open ocean.

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An aggregation of methane ice worms seen on a methane hydrate in the Gulf of Mexico. Image: NOAA

CLICK HERE - STUDY - Limited contribution of ancient methane to surface waters of the U.S. Beaufort Sea shelf

earther.com - by Maddie Stone - January 18, 2018

There’s been loads of media hype regarding the Arctic “methane bomb,” an idea that rising temperatures could cause a pulse of ancient methane, locked in permafrost and frozen hydrates on the ocean floor, to escape to the atmosphere, triggering catastrophic global warming. Well, we have some positive news for you: a new study finds little evidence to support this scenario playing out in at least one fast-warming part of the world . . .

 . . . “Our data suggest that even if increasing amounts of methane are released from degrading hydrates as climate change proceeds, catastrophic emission to the atmosphere is not an inherent outcome,” lead study author Katy Sparrow of the University of Rochester said in a statement.

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