Nearly 90% of Hanauma Bay’s beach could disappear by 2030, says UH study – Hawaii Public Radio

Hanauma Bay, Oahu (by Keith Roper CC BY 2.0 via Flickr).

A new study from the Hawaiʻi Institute of Marine Biology at the University of Hawaiʻi at Mānoa is predicting most of Hanauma Bay’s beach will be underwater for a few days in 2030.

Researchers used models to show the impact of sea-level rise at the bay. They combined the lowest predicted rise of six inches with the island’s seasonal King Tides, when waves splash higher on the shore higher than normal.

It forecasts that 88% of the bay’s usable beach, or sandy portions, would be submerged in 2030…

Plastic bottles harm human health at every stage of their life cycle – the Grist

The German 2012 Coca-Cola line-up (by Like the Grand Canyon CC BY-NC 2.0 via Flickr).

A new report says beverage companies like Coca-Cola must be “held accountable for the supply chain impacts of their plastics.”

In 1973, a DuPont engineer named Nathaniel Wyeth patented the PET plastic bottle — an innovative and durable alternative to glass. Since then, production has skyrocketed to more than half a trillion bottles per year, driven by beverage companies like Coca-Cola, PepsiCo, and Nestlé…

Dolly Parton’s new song is a climate anthem (if you want it to be) – the Grist

Screenshot from Dolly Parton - World On Fire (From The 58th ACM Awards via youtube).

In the video for her new song, “World On Fire,” Dolly Parton sits atop a burning world. Blond hair piled and coiffed, her black dress glittering, she looks down into a pit of flames burning the earth. The song rocks a little harder than her usual feathery country oeuvre, and over a driving beat, she lets you know she’s about to get political…

What is the Tragedy of the Commons? – TED Ed

Screenshot from "What is the Tragedy of the Commons" by TED-Ed via Youttube).

Is it possible that overfishing, super germs, and global warming are all caused by the same thing? In 1968, a man named Garrett Hardin sat down to write an essay about overpopulation. Within it, he discovered a pattern of human behavior that explains some of history’s biggest problems. Nicholas Amendolare describes the tragedy of the commons…

As Greenland’s Ice Melts, Glacial Sand Deposits May Offer a Welcome Economic Opportunity – Columbia Climate School

Greenland’s glaciers grind rock into a fine powder that discolors meltwater and often makes beautiful patterns as it mixes with seawater.(courtesy of NASA Earth Observatory, by Joshua Stevens, using Landsat data from the U.S. Geological Survey. Public Domain).

Greenland’s ice sheet is losing 280 billion tons of mass per year, and some models suggest that its glaciers may be melting up to 100 times faster than expected. But flowing off those glaciers comes a potential economic boom: sand. Each season, millions of tons of sediment flow from melting glaciers into the ocean, adding landmass to the largest island in the world. According to a research paper published in Nature last fall, three out of four Greenlanders support extracting and exporting sand — so long as they’re the ones in charge of managing the resource…

“Dr. Beach” unveils his Top 10 Beaches in the US – CNN Travel

Beach at St. George Island State Park (by Rachel Kramer CC BY 2.0 via Flickr).

Florida’s St. George Island State Park earns the top slot. The barrier island park offers nine miles of pristine beaches along the Gulf Coast. With nature trails for biking and hiking, plus birding, fishing, boating and camping…excellent swimming and sunbathing. It’s also a prime spot for stargazing with limited light pollution and an observation platform for night sky exploration. The beach has “some of the whitest, finest sand in the world,” said (Stephen) Leatherman (aka Dr. Beach)…“The water is crystal clear and clean, far from any sources of pollution on this offshore barrier island…”

Buying out threatened oceanfront homes is not a crazy idea – Coastal Review

Collapsed house in Rodanthe on evening of Feb. 9, 2022 (courtesy National Park Service, public domain via Flickr).

The oceanfront shoreline of Rodanthe has one of the highest erosion rates on the U.S. East Coast (recently upwards of 20 feet per year). Many homes that were initially constructed well back from the beach are now at risk of constant flooding and imminent collapse. A typical response to this erosion in Dare County (and most coastal communities) would be the implementation of a beach nourishment project. It is unclear whether this is practical for Rodanthe, as the geologic setting is problematic…

The Foul Chartreuse Sea – Yale Climate Connections

Blooming Cyanobacteria! (by Charos Pix CC BY-NC-ND 2.0 via Flickr).

Researchers in Kotzebue, Alaska, are investigating why their town is increasingly playing host to harmful cyanobacteria.

Dead fish were everywhere, speckling the beach near town and extending onto the surrounding coastline. The sheer magnitude of the October 2021 die-off, when hundreds, possibly thousands, of herring washed up, is what sticks in the minds of the residents of Kotzebue, Alaska. Fish were “literally all over the beaches,” says Bob Schaeffer, a fisherman and elder from the Qikiqtaġruŋmiut tribe…

Barcelona’s beaches could vanish as authorities abandon ‘enhancement’ – the Guardian

Barcelona's Promenade and Somorrostro Beach with the hotel W Barcelona in the background (by Falco Ermert CC BY 2.0 via Flickr).

For the 1992 Olympic Games, Barcelona rediscovered the sea. It beefed up its beachfront using thousands of tons of sand, and the area is now packed with tourists and lined with beach bars. Barcelona’s beach may be partly artificial, but it’s big business. The way things are going, however, soon there won’t be any beach at all. Across Catalonia, rising sea levels and winter storms are eating away at the coastline…