Sand – Planet Snapshots
Sand. It’s coarse, rough, irritating, and it gets everywhere — perhaps more than you think. Sand is the second most used natural resource after water and the most extracted solid material, accounting for 85% of global mineral extraction. Like a messy trip to the beach, it has infiltrated our pockets and all our surroundings. It’s the key ingredient in cement, asphalt, glass, and silicon chips. Our cities are glorified sand castles, and our most advanced tech is built from this unimposing substance…
Nearly 90% of Hanauma Bay’s beach could disappear by 2030, says UH study – Hawaii Public Radio
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…
As Greenland’s Ice Melts, Glacial Sand Deposits May Offer a Welcome Economic Opportunity – Columbia Climate School
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…
Lost Lands: Mining the Mekong – the South China Morning Post Films
Cambodia’s appetite for sand has exploded as construction continues to fuel economic growth in the capital Phnom Penh. But as the thirst for sand grows, so does the uncertainty over the future of the river. Two families who rely on the river for a living share their stories of how sand dredging is causing pain and concerns for the future.
Restoring Seabird Populations Can Help Repair the Climate – Inside Climate News
The number of ocean going birds has declined 70 percent since the 1950s. New research shows how projects bringing them back can also bolster ocean ecosystems that sequester carbon.
Seabirds evolved about 60 million years ago, as Earth’s continents drifted toward their current positions and modern oceans took shape. They spread across thousands of undisturbed islands in the widening seas. And as flying dinosaurs and giant omnivorous sea reptiles died out, seabirds also started filling an ecological niche as ecosystem engineers…
Sea level rise looms, even for the best-prepared country on Earth – MONGABAY
With more than a quarter of its land below sea level, the Netherlands has been going to great lengths to protect itself from the impacts of climate change, including sea level rise and extreme weather events like heavy rain. But even with the wealth and experience to address these issues, the future remains uncertain, mainly because a range of possible scenarios could play out after 2050…A misty rain blows against my face as I follow Farah Obaidullah along Scheveningen Beach in the northwest part of The Hague. Despite the wind and drizzle, the shoreline feels calm. Gray waves roll into the sand like long, deep breaths. Machines have raked the beach into a well-manicured carpet of grains and shell fragments…
Increasing Rate of Warming of Oceans + Earth . . .
A troubling study appeared last week indicating that over the past 15 years the Earth absorbed as much heat as it had during the prior 45 years, and most of that excess energy went into warming the ocean…
Seas have drastically risen along southern U.S. coast in past decade – the Washington Post
Multiple new studies highlight a rate of sea level rise that is ‘unprecedented in at least 120 years’ along the Gulf of Mexico and southeastern U.S. coast.
Scientists have documented an abnormal and dramatic surge in sea levels along the U.S. gulf and southeastern coastlines since about 2010, raising new questions about whether New Orleans, Miami, Houston and other coastal communities might be even more at risk from rising seas than once predicted…
Coastal crisis: It’s a race against time, and tide, for those living in Odisha’s coastal villages; here’s why – Down To Earth
Odisha is fast losing its shoreline to rising sea levels. Its adaptation plans must not only be immediate but also foolproof…
It is a race against time, and tide, for those living in Odisha’s coastal villages. Data with the National Centre for Sustainable Coastal Management, Chennai, shows that 74 villages in the state are severely affected by shoreline erosion—the highest in the country…