Dust storms in Africa affect US and the Caribbean's air quality

You might find it hard to believe that dust clouds from the African Sahara can travel thousands of miles across the Atlantic Ocean, but it does every year and in large quantities. In a recent study, Joseph Prospero, professor ...

How long is a day on Mars?

Mars represents something of a conundrum for scientists. In many respects, it is significantly different from Earth. It's cold, it's dry, there is little atmosphere or precipitation to speak of, and nothing grows there. ...

Forecasters predict 6 Atlantic hurricanes for 2009

Six hurricanes are expected to churn through the Atlantic this year, a Colorado State University forecast team said Tuesday as it lowered its estimates for the upcoming storm season.

New type of El Nino could mean more hurricanes make landfall

El Niño years typically result in fewer hurricanes forming in the Atlantic Ocean. But a new study suggests that the form of El Niño may be changing potentially causing not only a greater number of hurricanes than in average ...

Climate change could make Sahel wet: study

Climate change could transform one of Africa's driest regions, the Sahel, into a very wet one, a study showed Wednesday. But this is not necessarily good news.

Could global warming change tornado season, too?

With the planet heating up, many scientists seem fairly certain some weather elements like hurricanes and droughts will worsen. But tornadoes have them stumped.

Two NASA satellites see Tropical Storm Andres intensify

The first tropical depression of the eastern Pacific Ocean hurricane season strengthened into tropical storm Andres. NASA's Aqua and Global Precipitation Measurement mission core satellite both provided information showing ...

Experts predict quieter Atlantic hurricane season

Weather experts on Wednesday reduced the number of projected hurricanes in the north Atlantic this season to four, two of them major hurricanes with winds above 178 kilometers (111 miles) per hour.

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