October 22, 2009

Climate scientists discuss what they know about global climate change today, and how they know it.

August 30, 2009

The Southern Oscillation Index tracks differences in air pressure between the eastern and western sides of the tropical Pacific.

January 1, 2015

Temperatures measured on land and at sea for more than a century show that Earth's globally averaged surface temperature is rising.

In this activity, students examine climate variability in the North Atlantic associated with the North Atlantic Oscillation (NOA) in a case study format.

This is an activity designed to allow students who have been exposed to the El NiÃo-Southern Oscillation to analyze the La NiÃa mechanism and predict its outcomes in a case study format.

In this activity, students graph and analyze methane data, extracted from an ice core, to examine how atmospheric methane has changed over the past 109,000 years in a case study format. Calculating the rate of change of modern methane concentrations, they compare the radiative forcing of methane and carbon dioxide and make predictions about the future, based on what they have learned from the data and man's role in that future.

In this activity, students work with climate data from the tropical Pacific Ocean to understand how sea-surface temperature and atmospheric pressure affect precipitation in the tropical Pacific in a case study format.