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

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

Temperatures measured on land and at sea for more than a century show that Earth's globally a

Considerations for Climate Change & Variability Adaptation on the Navajo Nation

A new report led by the University of Colorado Boulder summarizes the impact of climate change on Navajo Nation lands and discusses factors that affect people’s vulnerabilities to climate impacts, and outlines a way for the region's residents to plan for ongoing environmental change.

This visualization examines the relationship between global wind direction and the direction and temperature (warm vs cold) of the ocean surface currents. Placing a cursor over the map superimposes surface wind patterns so the correlation between ocean currents and surface winds can be emphasized.

This animation starts with a schematic illustration of glacier growth and then introduces six different methods that researchers use when studying ice cores in order to deduce the climate of the past. The research methods that are briefly introduced are ice layering, pollen, oxygen isotopes, ice crystals and gases trapped inside, and other chemistry.

This video describes the impact of extreme heat on Philadelphia in the summer of 2011 and how the city is adapting to new expectations about its weather. It uses this example to introduce the new national climate normals, released by NOAA's National Climatic Data Center (NCDC) that summer.

This animation depicts global surface warming as simulated by NCAR's Community Climate System Model (CCSM) Version 3. It shows the temperature anomalies relative to the end of the 19th century (1870-1899), both over the entire globe and as a global average. The model shows the temporary cooling effects during the 5 major volcanic eruptions of this time period, and then the model's estimates of warming under the different scenarios taken from the fourth IPCC report.

This is a graph of marine air temperature anomalies over the past 150 years. Five different marine air temperature anomaly datasets from different sources are compared on the one graph.

NOAA OceanWatch

OceanWatch-Central Pacific acquires and processes satellite information and creates a variety of satellite data products for the Pacific Ocean region. We provide daily satellite observations of the Central Pacific Region.

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