This site defines El Nino/Southern Oscillation and La Nina, provides a glossary, and presents real-time data of sea surface temperatures, winds and anomalies over time. Also describes research programs and sensing...

Discussion of holes in the stratospheric ozone layer usually revolves around investigations of the thickness of the layer near the South Pole. This online activity allows users to study the thickness of the ozone layer...

Scientists and educators have joined forces to create this collection of teaching materials on El Nino, storms, the atmosphere, fisheries, the Great Lakes, and oceans. Each unit contains background information, data,...

This exercise is intended to reinforce the importance of Earth's atmosphere to living organisms. Topics include our bodies' interactions with the atmosphere; its composition and structure; and natural changes in the...

The terms greenhouse effect, climate change, and global warming are often used interchangeably, yet they really refer to three separate and distinct processes. This activity examines all three and assesses whether...