When Republicans on Capitol Hill want to hear reasons not to take strong action on climate change, sometimes they call on Judith Curry to testify. The climatologist has staked out an unusual position on the subject: She says the climate is changing and people are partly responsible, but we shouldn't bother regulating carbon dioxide.
Scientists are always looking for a more accurate answer to the question, "What time is it?" Now they've built the most precise atomic clock yet — but it's not just telling time. It has the potential to investigate the accuracy of the General Theory of Relativity.
Looks like our prehistoric ancestors were bigger foodies than we realized. Archaeologists have found evidence that hunter-gatherers added a hot, mustard spice to their fish and meat thousands of years ago. So meals weren't just about consuming calories. Taste and flavor were important, too.
A nine-year study tracked more than 800 of the massive and largely mysterious whale sharks. For the first time, researchers have tracked the sharks' far-flung migration and where they may go to give birth.
Beta agonists, a class of drugs widely fed to cattle and hogs to make them put on weight faster, are coming under increasing scrutiny. Reports suggest animals fed these drugs can seem reluctant to move — lethargic, unable to walk properly — and may die more often, too.
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