Your Top Science Stories for this Week
| The U.S. Environmental Protection Agency announced on Monday that it has rejected an Obama-era plan to cut tailpipe emissions for cars and light trucks. The statement also signaled an oncoming legal battle over California's own stricter emissions standards. | |
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| The same blood-sucking leeches feared by hikers and swimmers are making a comeback ... in hospitals. Once used for questionable treatments, leeches now help doctors complete complex surgeries to reattach severed body parts. FYI: This episode is a bit more bloody than usual. Viewer discretion is advised. Our new Deep Look! | |
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