Scientists categorize El Niños as weak, moderate, strong, or very strong. With data from buoys and satellites, computer models forecast whether El Niño is likely in the coming months.
 

Earth's global average temperate is predicted to keep rising. But how much warmer do we expect it to become, and what are the predicted impacts? Find out here!

Changes in Earth's climate have different effects in different areas of the world. Some places are warming up more than others. Some places have more rainfall, while others experience more droughts.

The average global temperature is rising, and the polar regions are experiencing warming at a faster rate than other places.

The warming climate is causing rapid environmental change, endangering entire ecosystems.

How is climate change impacting human health? Explore how shifts in extreme natural events, vector-borne diseases, and water will affect human populations.

The combination of high humidity and high temperatures can lead to extreme heat and dangerous conditions.

The movement of water through the water cycle is changing due to rising global temperatures. The result is changes to our weather, clouds, ocean, and sea ice.

The sea level is rising due to melting ice and thermal expansion of seawater. As global temperatures continue to go up, how much will sea levels rise?

What does it mean when polar air breaks out of the Arctic, and why is it happening more frequently? The processes are quite complex!

The American Southwest is becoming more prone to drought as Earth warms. How will the drier conditions affect North America's largest cat, the mountain lion?