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A Pair of Hearts

Frozen Lake Saint Clair in the North American Great Lakes system and the briny Salinas Las Barrancas in Argentina have little in common—save for their heart-like shapes. 

Dessert stomach emerges in the brain

Who hasn't been there? The big meal is over, you're full, but the craving for sweets remains. Researchers have now discovered that what we call the 'dessert stomach' is rooted in the brain. The same nerve cells that make us feel full after a meal are also responsible for our...

Models show intensifying wildfires in a warming world due to changes in vegetation and humidity; only a minor role for lightning

Climate scientists present a realistic supercomputer simulation that resolves the complex interactions between fire, vegetation, smoke and the atmosphere. The authors find that increasing greenhouse gas emissions will likely increase the global lightning frequency by about 1.6% per degree Celsius global warming, with regional hotspots in the eastern United States,...