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The Cool Down is mainstream America's guide to a cleaner, cooler future, making it easy for people from all walks of life to help themselves while helping the planet.
- 2,411articles · 30d
- 32+ min agolatest article
- Aug 14, 2026earliest in window
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News
Egypt archaeologists uncover 3,000-year-old tomb as flash floods threaten painted walls
6+ day, 21+ hour ago (469+ words) The resulting moisture and salt crystal growth can damage painted surfaces or lead to structural collapse. Near Luxor, archaeologists have identified a previously unknown Ramesside-period tomb, offering a rare look at elite burial traditions while highlighting the growing risks climate…...
Ireland's 6,500-year-old 'cow' bones turn out to be bear and wild boar, rewriting farming timeline
1+ week, 5+ hour ago (441+ words) The bear remains may also help resolve separate questions about Ireland's wildlife history. A set of 6,500-year-old animal bones once believed to be the earliest mark of farming in Ireland has now been dramatically reclassified. After decades of being cited…...
Belize rainforest still carries ancient Maya imprint in canopy height, leaf density
1+ week, 8+ hour ago (510+ words) The finding challenges the idea that a mature tropical forest is always a purely "natural" system with no lasting human fingerprint. New research suggests parts of Belize's old-growth rainforest may still carry the imprint of how the ancient Maya used…...
Italian man spent years charging tourists to see a fake 'ancient' theater he built himself
1+ week, 5+ day ago (263+ words) Tourist attractions often trade on mystery, but one story out of Italy shows how quickly a compelling tale can become a costly scam. For years, tourists reportedly paid to see what they believed was an ancient theater near Arcugnano, only…...
Ancient shark 'graveyard' found in Egypt's desert shows it was once a thriving sea
1+ week, 6+ day ago (466+ words) The shark remains were still an "exciting surprise." A stretch of Egypt's Western Desert is giving scientists a startling glimpse of a world that long ago disappeared. Researchers have uncovered fossil shark teeth across the Abu-Tartur Plateau, revealing that a…...
Lost WWI U-boat off Denmark is leaking TNT into the North Sea food chain
2+ week, 2+ hour ago (565+ words) "The problem with these ammunition compounds is that they are not only toxic but also carcinogenic." A German World War I submarine that disappeared off the coast of Denmark more than a century ago is still harming the surrounding environment…...
Magnet fisher pulls 1,500-pound unexploded World War II mine from the Danube in Slovakia
2+ week, 6+ hour ago (476+ words) Officials warned residents not to go looking for similar objects on their own. A magnet fisher along the Danube in Slovakia pulled up far more than scrap metal: an unexploded World War II-era British anti-ship mine weighing more than 1,500 pounds....
Study suggests blood helped keep China's 2,000-year-old Huashan cliff art from washing away
3+ week, 3+ day ago (527+ words) This art endured frequent downpours, high humidity, and intense subtropical monsoon heat. Researchers have long struggled to explain why the red paintings on the Huashan cliffs in southern China remain visible. In a place marked by heat, humidity, and heavy…...
Study finds potato-heavy diets reshaped Indigenous Andean DNA for starch digestion
3+ week, 3+ day ago (543+ words) "Our metabolic pathways are not simply a product of that Paleolithic past." Potatoes have fed civilizations for thousands of years, but they have done more than that. Scientists have said the crop may have helped shape human biology, giving Indigenous…...
Norway archaeologists reopen burial mound, uncover traces of a 50-foot Viking ship
4+ week, 18+ hour ago (402+ words) "It was so well preserved that I could see blueberry plants and heather that were growing there." In Norway, a new excavation of a forgotten burial mound is offering archaeologists a look at an ancient ship that could belong to…...