Study: Plants less thirsty as climate warms

Miami: A warming planet might not dry out Earth as much as previously believed, because plants will become less thirsty as carbon dioxide in the atmosphere rises, researchers said Monday.

Previous studies have projected that more than 70 percent of the planet will experience more drought as carbon-dioxide levels quadruple from pre-industrial levels over about the next 100 years, said the report in the Proceedings of the National Academy of Sciences.