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A paleontologist wears a T-shirt showing _Strophodus rebecae_, a shark species with flat teeth that lived millions of years ago. Juan Pablo Pino/AFP via Getty Images

Human fear of sharks has deep roots. Written works and art from the ancient world contain

Read more …‘Jaws’ portrayed sharks as monsters 50 years ago, but it also inspired a generation of shark...

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A satellite image shows a powerful atmospheric river hitting the Pacific Northwest in December 2023. Darker greens are more water vapor. Lauren Dauphin/NASA Earth Observatory

A series of atmospheric rivers is bringing the threat of heavy downpours, flooding,

Read more …What is an atmospheric river? A hydrologist explains the good and bad of these flood-prone storms...

Boulder, Colorado, passed stricter regulations against plastic bags at the beginning of 2024, banning them from all retail stores. The tougher rule builds on a 2013 local law that banned plastic bags from grocery stores and began charging shoppers 10 cents

Read more …Boulder strengthens rules against plastic bags – but do bans and fines actually reduce waste?

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