The real story behind the Atlantic’s record-breaking seaweed blobs – BBC

Sargassum in St. Marin (Mark Yokoyama CC BY-NC-ND 2.0 via Flickr).

Along the coastlines of the Caribbean and the Gulf of Mexico, a monster is lurking. It creeps in with the tide and you’ll likely smell it before you see it. Giant clumps of sargassum seaweed have been washing ashore, choking the surf and blanketing beaches in a brown, stinking mass.

The clumps are breaking off an enormous raft of free-floating seaweed known as the Great Atlantic Sargassum Belt, which stretches 5,000 miles (8,047km) between the Gulf of Mexico and the west coast of Africa and can be seen from space…

Opinion | Interactive: The Plan to Save New York From the Next Sandy Will Ruin the Waterfront. It Doesn’t Have To – the New York Times

Animation illustrates the potential effects of anticipated sea level change to coastal communities by 2100 (Courtesy of US Army Corp of Engineers).

Last September, the U.S. Army Corps of Engineers unveiled its proposal to protect the greater New York and New Jersey metro area from the next catastrophic flood. It is an epic plan that includes dozens of miles of floodwalls, levees and berms along the shoreline and 12 storm surge barriers — arrays of movable gates — across entrances to waterways throughout the region.

The plan is estimated to cost a staggering $52.6 billion. It’s by far the most expensive project ever proposed by the Corps.

The trouble is that despite its great ambitions, the Corps’s plan demonstrates the shortcomings of relying on massive shoreline structures for flood protection…

Plastic-rock hybrids found on the Andaman Islands – Mongabay

Rocks called "plastiglomerates" - because they are made of a mixture of sedimentary granules and other debris held together by plastic, mainly fishing nets - have been found in Brazil's volcanic Trindade Island. Researchers view this as evidence of humans' growing influence over the earth's geological cycles (screenshot taken from Global News video "Mutated "plastic rocks" discovered on remote Brazilian island," March 23, 2023, via Youtube).

A study found the formation of plastic-rock hybrids in the intertidal zone of remote beaches of Aves Island in the Andaman archipelago. This is a first record of these hybrid rocks, known as plastiglomerates, from India.
Samples from the island that were analysed contained polyethylene and polyvinyl chloride. Incineration of plastic litter could have led to their formation.
The impact of plastiglomerates on marine ecosystems is yet to be understood as research on plastiglomerates is an emerging field…

Study says buyout of threatened Outer Banks homes would be cheaper than beach nourishment – Star News Online

South breach area on NC 12 above Rodanthe (courtesy of NCDOT)NCDOTcommunications CC BY 2.0 via

Along coastal North Carolina, engineering answers to threats from Mother Nature is a time-honored tradition to dealing with eroding beaches and threats from wandering inlets. But pumping sand isn’t cheap….Faced with a future of rising seas and stronger storms intensified by climate change, state and local officials are scrambling to keep up.(And) one option occupies a relatively rare seat at the table for discussion by local officials and residents: moving oceanfront structures out of harms way…

The planet saw its hottest day on record this week – CNN

The Burning of the Sky (byJustin Vidamo CC BY 2.0 via Flickr ).

On Monday, the average global temperature reached 17.01 degrees Celsius (62.62 Fahrenheit), the highest in the US National Centers for Environmental Prediction’s data, which goes back to 1979. On Tuesday, it climbed even further, reaching 17.18 degrees Celsius and global temperature remained at this record-high on Wednesday…

Why a sudden surge of broken heat records is scaring scientists – the Washington Post

Global temperatures on July 4th, 2023 (courtesy of Climate Reanalyzer.Org | University of Maine | NOAA CC BY-NC 4.0).

New precedents have been set in recent weeks and months, surprising some scientists with their swift evolution: historically warm oceans, with North Atlantic temperatures already nearing their typical annual peak; unparalleled low sea ice levels around Antarctica, where global warming impacts had, until now, been slower to appear; and the planet experiencing its warmest June ever charted, according to new data. And then, on Monday, came Earth’s hottest day in at least 125,000 years. Tuesday was hotter…