El Niño: Facts, news, features and articles about the climate cycle that impacts weather patterns around the globe

There's still time to assemble an appropriately geeky getup in time for this weekend's festivities.

A strong El Niño is brewing in the Pacific, which should bring warmer and wetter weather across the Southern and Eastern United States.

El Niño is expected to be more beast than "little boy" this year — a forecast about the weather pattern that becomes clear in newly released maps of the waters around the equatorial Pacific Ocean.

Snakebites in Costa Rica spike during El Niño and La Niña as venomous snakes respond to changes in the weather and climate.

June 2015 was the warmest June on record, and there's a good chance 2015 will be the warmest year.

Severe floods in Texas and Oklahoma are causing devastation after multiple storm systems battered a formerly drought-stricken area, according to experts.

Billions of by-the-wind sailors, also called Velella velella, could wash ashore in coming months because of favorable water temperatures and onshore winds.

The West can expect its warm and dry weather to continue through the summer, while the central Plains will be relatively cool and wet.

The first three months of 2015 set new global heat records.