El Nino and La Nina

Past hurricane activity shows global warming may not be cause of recent high activity.

Scientists created the longest-ever record of hurricane strikes and show El Niño acts like switch.

An informal straw poll of New Yorkers reveals that many think global warming and El Nino are somehow contributing to this year's unusually mild winter.

Is global warming behind this year's warm winter? Yes and no, scientists say.

As warming ocean temperatures have been linked to a spike in wildfires in the past, scientists now predict the western United States could experience more of such fires in the coming decades.

El Nino conditions have developed in the tropical Pacific and are likely to continue into early 2007.

The U.S. should expect wetter-than-average conditions over portions of the Gulf Coast and southeastern states in the first three months of 2007

The jet streams are on the move, and scientists say it could change rainfall long-term patterns around the globe.

Greenhouse emissions are behind a shift that could affect marine biology, scientists say.