A new study from Columbia University has found that taurine, a type of amino acid known mostly as an ingredient in energy drinks, extended the life of worms, mice and monkeys.
The planet's temperature spiked on Tuesday to its hottest day in at least 44 years and likely much longer, and Wednesday could become the third straight day Earth unofficially marks a record-breaking high, the latest in a series of climate-change extremes that alarm but don't surprise scientists.