Oceans

Researchers Make Progress Toward High-Performing Water Desalination Membranes

Sat, 2021-01-02 12:47 — mike kraft

http://www.sci-news.com/othersciences/materials/high-performing-water-desalination-membranes-09209.html

Biological membranes can achieve remarkably high permeabilities while maintaining ideal selectivities by relying on homogeneous internal structures in the form of membrane proteins. In new research, a team of scientists led by Penn State University and the University of Texas at Austin applied such design strategies to desalination polyamide membranes.

Dr. Enrique Gomez, Dr. Manish Kumar and their colleagues from Iowa State University, Penn State University, the University of Texas at Austin, DuPont Water Solutions, and Dow Chemical Co. found that creating a uniform membrane density down to the nanoscale of billionths of a meter is crucial for maximizing the performance of reverse-osmosis, water-filtration membranes.

Country / Region Tags:

General Topic Tags:

Problem, Solution, SitRep, or ?:

Solutions

Situation Report

Read more about Researchers Make Progress Toward High-Performing Water Desalination Membranes
Log in or register to post comments

Damage from whopper hurricanes rising for many reasons

Thu, 2020-08-27 08:46 — mike kraft

Damage from whopper hurricanes rising for many reasons A destructive storm is rising from warm waters. Again. America and the world are getting more frequent and bigger multibillion dollar tropical catastrophes like Hurricane Laura, which is... AP NEWS

...America and the world are getting more frequent and bigger multibillion dollar tropical catastrophes like Hurricane Laura, which is menacing the U.S. Gulf Coast, because of a combination of increased coastal development, natural climate cycles, reductions in air pollution and man-made climate change, experts say.

Country / Region Tags:

General Topic Tags:

Disaster Risk Reduction

Problem, Solution, SitRep, or ?:

Analysis

Situation Report

Read more about Damage from whopper hurricanes rising for many reasons
Log in or register to post comments

Study of Antarctic Sea Ice Collapse Warns of Potential 10-Foot Sea Rise

Thu, 2019-01-17 08:31 — Kathy Gilbeaux

PACK ICE MELTING IN SPRING IN ANTARCTICA'S WEDDEL SEA. CREDIT: PLANET OBSERVER/UNIVERSAL IMAGES GROUP VIA GETTY IMAGES

The faster the ocean warms, the faster key Antarctic glaciers will disintegrate.

CLICK HERE - STUDY - Four decades of Antarctic Ice Sheet mass balance from 1979–2017

thinkprogress.org - by Joe Romm - January 15, 2019

A stunning new study on Antarctic sea ice collapse greatly raises the risk of a 10-foot sea level rise this century if President Donald Trump’s climate policies aren’t quickly reversed.

Warming ocean waters drove a 6-fold increase in annual ice mass loss from the Antarctic ice sheet between 1979 and 2017, according to a new study in the Proceedings of the National Academy of Sciences.

It’s been known for a while that the West Antarctic Ice Sheet (WAIS) was unstable and collapsing at an accelerating rate due to global warming. But the new study finds that parts of the vastly larger East Antarctic Ice Sheet (EAIS) are also disintegrating.

Country / Region Tags:

General Topic Tags:

Problem, Solution, SitRep, or ?:

Problem

Situation Report

Read more about Study of Antarctic Sea Ice Collapse Warns of Potential 10-Foot Sea Rise
Log in or register to post comments

Hurricane Preparedness - Information Resources

Sun, 2018-11-25 00:00 — Kathy Gilbeaux

General Topic Tags:

Problem, Solution, SitRep, or ?:

Situation Report

AN EXPANDING LIST OF INFORMATION RESOURCES FOR HURRICANE PREPAREDNESS . . .

National Hurricane Center - Active Tropical Cyclones
http://www.nhc.noaa.gov/cyclones/

National Hurricane Center - Atlantic 5-Day Graphical Tropical Weather Outlook
http://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=5

Read more about Hurricane Preparedness - Information Resources
Log in or register to post comments

NASA Captures Polluted Carolina Rivers Spilling Into the Ocean After Hurricane Florence

Thu, 2018-09-27 09:35 — Kathy Gilbeaux

NASA - September 19, 2018

CLICK HERE - NASA - A Broad View of Flooding in the Carolinas

time.com - by ELI MEIXLER - September 26, 2018

Flooding from Hurricane Florence, which battered the Carolinas this month, is so severe that NASA was able to spot darkened, contaminated rivers flowing into the Atlantic Ocean.

Nearly 8 trillion gallons of rain fell on North Carolina during the storm, according to the National Weather Service in Raleigh. That deluge took a devastating toll, swelling rivers and inundating homes.

NASA satellite images released this week reveal just how engorged, and polluted the rivers and other waterways became.

(CLICK HERE - READ COMPLETE ARTICLE)

CLICK HERE - Wash your hands if you touch the ocean in NC – and forget swimming, experts warn

Country / Region Tags:

General Topic Tags:

Problem, Solution, SitRep, or ?:

Problem

Situation Report

Read more about NASA Captures Polluted Carolina Rivers Spilling Into the Ocean After Hurricane Florence
Log in or register to post comments

Flooding From Sea Level Rise Threatens Over 300,000 US Coastal Homes – Study

Mon, 2018-06-18 18:27 — Kathy Gilbeaux

Oceanfront homes in Virginia Beach, Virginia. Houses on the US coastline could risk being flooded every two weeks. Photograph: Alamy

Climate change study predicts ‘staggering impact’ of swelling oceans on coastal communities within next 30 years

CLICK HERE - Union of Concerned Scientists - Introduction - US Coastal Property at Risk from Rising Seas

CLICK HERE - Union of Concerned Scientists - Underwater: Rising Seas, Chronic Floods, and the Implications for US Coastal Real Estate (2018)

CLICK HERE - Union of Concerned Scientists - When Rising Seas Hit Home: Hard Choices Ahead for Hundreds of US Coastal Communities (2017)

Country / Region Tags:

General Topic Tags:

Problem, Solution, SitRep, or ?:

Problem

Situation Report

Read more about Flooding From Sea Level Rise Threatens Over 300,000 US Coastal Homes – Study
Log in or register to post comments

NASA: On the U.S. East Coast, Sea Level is Rising Two or Three Times Faster Than Average

Mon, 2015-08-31 22:03 — Kathy Gilbeaux

Glacial Rebound: The Not So Solid Earth

nasa.gov - August 26, 2015

When you fill a sink, the water rises at the same rate to the same height in every corner. That's not the way it works with our rising seas.

According to the 23-year record of satellite data from NASA and its partners, the sea level is rising a few millimeters a year -- a fraction of an inch. If you live on the U.S. East Coast, though, your sea level is rising two or three times faster than average. If you live in Scandinavia, it's falling. Residents of China's Yellow River delta are swamped by sea level rise of more than nine inches (25 centimeters) a year.

These regional differences in sea level change will become even more apparent in the future, as ice sheets melt. For instance, when the Amundsen Sea sector of the West Antarctic Ice Sheet is totally gone, the average global sea level will rise four feet. But the East Coast of the United States will see an additional 14 to 15 inches above that average.

(READ COMPLETE ARTICLE)

Country / Region Tags:

General Topic Tags:

Problem, Solution, SitRep, or ?:

Situation Report