Sponging Up Plastic Pollution – Hakai Magazine

Microplastics in the Chesapeake Bay Watershed: Microplastics from the Rhode River are pictured at the laboratory of Dr. Lance Yonkos in the Department of Environmental Science & Technology at the University of Maryland in College Park, Md., on Feb. 6, 2015 (Photo by Will Parson/Chesapeake Bay Program CC BY-NC 2.0 DEED via Flickr).

For millennia, humans have used dried natural sponges to clean up, to paint, and as vessels to consume fluids like water or honey; we’ve even used them as contraceptive devices. Whether synthetic or natural, sponges are great at ensnaring tiny particles in their many pores. And as scientists around the world are beginning to show, sponges’ cavity-filled forms mean they could provide a solution to one of our era’s biggest scourges: microplastic pollution….

The overwhelming plastic waste Hawaii visitors leave behind – SFGATE

"Liquid Avalanche" Sandy Beach in Oahu, Hawaii (by Floyd Manzano CC BY 2.0 via Flickr).

Plastics like in-room toiletries provided by resorts, plus to-go containers and cutlery provided by restaurants, are used and discarded by guests day after day. A single hotel chain can use hundreds of millions of little bottles of shampoo and conditioner every year.

When visitors leave, a lot of these items end up in the trash, yet Hawaii doesn’t have the infrastructure to recycle the immense amount of plastic left behind…

Using ‘recycled plastic’ in construction materials may not be a great idea after all – Grist Magazine

Asphalt (by katsuuu 44 CC BY-ND 2.0 via Flickr).

Last month, the American Chemistry Council, a petrochemical industry trade group, sent out a newsletter highlighting a major new report on what it presented as a promising solution to the plastic pollution crisis: using “recycled” plastic in construction materials. At first blush, it might seem like a pretty good idea — shred discarded plastic into tiny pieces and you can reprocess it into everything from roads and bridges to railroad ties…

There Might Be Less Plastic in the Sea Than We Thought. But Read On – the New York Times

Plastic input into the oceans: Despite knowledge of the role played by rivers, there are no global estimates of the amount of man-made debris reaching the ocean at river mouths. Therefore, of the estimated 4.8 to 12.7 million tonnes of litter which enter the marine environment in 2010 from land-based sources within a 50 km-wide coastal zone (Jambeck et al., 2015) Illustration by Maphoto/Riccardo Pravettoni, courtesy of GRID-Arendal CC BY-NC-SA 2.0 via https://www.grida.no/resources/6906).

There’s less plastic pollution flowing into the ocean from land than scientists previously thought, according to a study published Monday in the journal Nature Geoscience.

The researchers estimated that about 500,000 metric tons of plastic end up in the ocean each year, with about half from land. The other half comes from the fishing industry in the form of nets, ropes, buoys and other equipment…

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…

How Plastics Are Poisoning Us – the New Yorker

"Don't waste water" (by Kumar Jhuremalani CC BY 2.0 via Flickr).

They both release and attract toxic chemicals, and appear everywhere from human placentas to chasms thirty-six thousand feet beneath the sea…How worried should we be about what’s become known as “the plastic pollution crisis”? And what can be done about it? These questions lie at the heart of several recent books that take up what one author calls “the plastic trap…”