Hurricane Norbert strengthened into a Category 2 hurricane over the Pacific Ocean late Tuesday, and forecasters said it could hit the southern Baja California Peninsula by the weekend.
Tropical Storm Marco roared ashore on Mexico's gulf coast with near-hurricane force winds, prompting a shutdown of some oil platforms and forcing the evacuation of some 3,000 people.
In Australia, the world's driest inhabited continent, there is simply not enough water to go around. So farmers there rely on a unique trading system to make the most of every drop.
The Arctic has become more stormy in the past 50 years due to the warming climate, which in turn has quickened the pace of drifting sea ice, a new NASA study finds.
Weather 
