An interactive simulation of Earth's seasonal dynamics that includes the axial tilt and other aspects of Earth's annual cycle.

This is part of a larger lab from the University of Nebraska at Lincoln: http://astro.unl.edu/naap/motion1/motion1.html

This video features University of Wisconsin-Madison researcher John Magnuson, who studies the ecology of freshwater systems. He explains the difference between weather and climate using data on ice cover from Lake Mendota in Madison, WI. Analysis of the data indicates a long-term trend that can be connected to climate change.

This animation demonstrates the changing declination of the sun with a time-lapse animation. It shows how the shadow of a building changes over the course of a year as the declination of the sun changes.

This Motions of the Sun Lab is an interactive applet from the University of Nebraska-Lincoln Astronomy Applet project.

Crop Moisture Stress Index

A measure of the effects of drought and catastrophic wetness on national crop yields for corn and soy.

Arctic Report Card: 2011

The annual Report Card provides clear, concise scientific information on the state of the Arctic region, organized into 5 sections: Atmosphere, Sea Ice & Ocean, Marine Ecosystems, Terrestrial Ecosystems, and Hydrology & Terrestrial Cryosphere.  This edition was prepared by an international team of 121 scientists from 14 different countries.  Independent peer-review of the 2011 Report Card was organized by the Arctic Monitoring and Assessment Programme of the Arctic Council.

Scientific Assessment of Ozone Depletion (2010)

This is the most recent assessment of ozone depletion. Produced by the WMO and UNEP every four years since 1985, the assessment is the work of over 300 scientists including some from NOAA. The 2010 report highlights advances in the understanding of the role greenhouse gases play in ozone alteration. It also includes updated information for policymakers including ozone projections for the 21st century.

Coastal Strategies for Addressing Climate Change

A collection of case studies and information about how coastal communities can plan for and adapt to climate change. These resources represent a national guide for how coastal communities can plan and adapt. Case study issues range from coastal managers addressing sea level rise in Rhode Island to coral bleaching caused by rising sea temperatures in Florida.

Global Climate Change Impacts in the United States Cover

Global Climate Change Impacts in the United States (2009)

Climate changes are underway in the United States and are projected to grow. Consequently, crops and livestock production will be increasingly challenged and threats to human health will increase. These are two key findings presented in this 2009 assessment report by the U.S. Global Change Research Program. The report gives an overview of climate-related issues and impacts for seven geographical regions and seven sectors of society.

Past Climate Variability and Change in the Arctic and at High Latitudes

Over the past 30 years, average temperatures in the Arctic have increased at almost twice the rate of the planet as a whole. Such temperature changes have been accompanied by shrinking sea ice, melting ice and permafrost on land, and widespread impacts to land and ocean ecosystems.

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