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…