Just Washed In

Seagrass’ strong potential for curbing erosion

A new study shows how seagrass can help to protect shorelines against erosion and help to mitigate damage from rising sea level, potentially providing useful guidance for seagrass restoration efforts.

Tapping fresh water under the ocean has consequences

Coastal communities may consider using offshore groundwater resources as populations increase and the limited freshwater resources are degraded by overuse and pollution, but new research suggests tapping into them could lead to adverse impacts onshore.

“Silences” – From “Antarctica ” Series; By Denis Delestrac

“Silences” – From “Antarctica ” Series, is an image from Denis Delestrac.

Big Talbot Island’s Blackrock Trail; By Cecelia Dailey

The locals call it “lava beach”—a misnomer which leads some to believe the unique formation found here are igneous in origin. But these mystifying “black rocks” crumble to the touch, staining the hands, feeling gritty with sand. Although many are black, these “rocks” are sometimes light colored, deep red or burnt brown.

Strong winds are supersizing the ocean’s biggest waves

Strong winds are driving the ocean’s biggest waves to dizzying new heights. The University of Melbourne researchers behind the work, published April 25 in the journal Science, say the supersized waves could compound the effects of rising sea levels, leading to more frequent flooding and accelerated coastal erosion.

Indonesia plans to relocate its capital from Jakarta

Indonesia plans to move its capital city from Jakarta, according to the country’s planning minister. Jakarta is home to more than 10 million people according to the United Nations, with an estimated 30 million in the greater metropolitan area. The nation is prone to flooding and is sinking at an alarming rate.

El Niño and our beaches; By Gary Griggs

Erosion, Inform
Apr
28

Our beaches come and go seasonally in response to changing wave conditions. The larger and more energetic winter waves stir up the beach sand and carry it offshore, eroding the shoreline back. Six months or so later, the smaller and less energetic spring and summer waves gradually move that sand back onshore, building the beach just in time for all the summer visitors.

Antarctica’s Effect on Sea Level Rise in Coming Centuries

There are two primary causes of global mean sea level rise — added water from melting ice sheets and glaciers, and the expansion of sea water as it warms. The melting of Antarctica’s ice sheet is currently responsible for 20-25% of global sea level rise.

Preventing collapse after catastrophe

As the impacts of climate change escalate, ecosystems will likely undergo events that will disrupt entire populations. In marine ecosystems, anthropogenic warming has subjected organisms to elevated temperatures, oxygen loss, and acidification. The increased frequency and severity of catastrophic events may inhibit a population’s ability to recover and, in turn, may spur collapse.

Melting permafrost in Arctic will have $70tn climate impact – study

The release of methane and carbon dioxide from thawing permafrost will accelerate global warming and add up to $70tn (£54tn) to the world’s climate bill, according to the most advanced study yet of the economic consequences of a melting Arctic.

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