15 years after the BP oil spill disaster, how is the Gulf of Mexico faring? – Mongabay

Deepwater Horizon Fire - April 22, 2010 (courtesy of the US Coast Guard public domain via SkyTruth Galleries on Flickr).

The Deepwater Horizon disaster on April 20, 2010, was the largest offshore oil spill in U.S. history, releasing an estimated 4.9 million barrels of oil into the Gulf of Mexico…Fifteen years later, the gulf ecosystem shows a complicated picture of both resilience and lingering damage, with some species, like brown pelicans, recovering, while others, like humans, dolphins and deep-sea corals, continue to struggle with long-term health impacts.

Can the circular economy help the Caribbean win its war against waste? – Mongabay

On the way to the Playa Quehueche in Livingston, on the Caribbean coast of Guatemala (by Ken MacElwee CC BY-NC-ND 2.0 DEED via Flickr).

For decades, a graveyard of corroding barrels has littered the seafloor just off the coast of Los Angeles. It was out of sight, out of mind — a not-so-secret secret that haunted the marine environment until a team of researchers came across them with an advanced underwater camera…Startling amounts of DDT near the barrels pointed to a little-known history of toxic pollution…but federal regulators recently determined that the manufacturer had not bothered with barrels. (Its acid waste was poured straight into the ocean instead.)…

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…