Climate change is happening and it is caused largely by human activity. Its impacts are beginning to be felt and will worsen in the decades ahead unless we take action. The solution to climate change will involve a broad array of technologies and policies—many tried and true, and many new and innovative.
This overview summarizes the eight-part series Climate Change 101: Understanding and Responding to Global Climate Change.
Science and Impacts  discusses the scientific evidence for climate change and explains its causes and current and projected impacts.
Adaptation  discusses these impacts in greater depth, explaining how planning can limit (though not eliminate) the damage caused by unavoidable climate change, as well as the long-term costs of responding to climate-related impacts.
As explored in greater depth in Technological Solutions , a number of technological options exist to avert dangerous climatic change by dramatically reducing greenhouse gas emissions both now and into the future.
Business Solutions , International Action , Federal Action , State Action , and Local Action  describe how business and government leaders at all levels have recognized both the challenge and the vast opportunity dealing with climate change presents. These leaders are responding with a broad spectrum of innovative solutions. To address the enormous challenge of climate change successfully, new approaches are needed at the federal and international levels, and the United States must stay engaged in the global effort while adopting strong and effective national policies.
For more information, be sure to listen to our Climate Change 101 podcast series