Meteorologists predict a historic El Nino event that could exacerbate global weather extremes, affecting agriculture, economies, and climate patterns worldwide.

Meier: “What happens in the Arctic does not stay in the Arctic.” That’s Walt Meier, a senior research scientist at the National Snow and Ice Data Center at the University of Colorado. He says Arctic sea ice is shrinking dramatically.

Past Center surveys have found that Americans with higher levels of formal education are more likely to say human activity is a big cause of climate change. This pattern is driven by Democrats. In contrast, Republicans of all education levels are unlikely to say climate change is mostly the result of human activity.

Spring storms across the North Atlantic are becoming more frequent and powerful as climate change reshapes weather patterns.

Researchers have uncovered a key mechanism behind Japan's extreme winter weather, revealing how distant climate patterns interact to intensify cold waves and heavy snowfall.

As temperatures neared their midday peak, Hu Xiaosong was doing his regular patrol, at an altitude of more than 5,500 feet, to protect a 1,000-year-old pine tree that he says is like family to him.

Most weather-related headlines focus on the dramatic: a named hurricane making landfall, a tornado cutting through a suburb. What gets less attention are the patterns that build quietly, the ones that don't arrive with a single dramatic moment but instead accumulate over days,

El Niño, a natural warming of Pacific Ocean water, can have a big impact on the world economy, costing trillions of dollars around the globe.