A drought is defined as a period of dry weather that lasts long enough to cause a serious imbalance in the resources of a particular area. Lack of rainfall sufficient to produce food can bring communities and countries to their knees.
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Changing regional climates could alter forests, crop yields, and water supplies. It could also affect human health and animals. Explore the impacts of global warming on a variety of ecosystems.
Agricultural disasters may not be as dramatic as a volcanic eruption or a hurricane, but they are the most damaging. Many different weather events can trigger crop failure including floods, heat waves, cold snaps, and severe storms.
Features: Graphics/Multimedia, In the News
Click on your state to learn more about local climate variability. There is a discussion about the impact of these changes on human health, ecosystems, and agriculture.
This site asks students to complete an Earth systems analysis for one of two scenarios addressing the effects of climate change on crops.
Features: Lesson Ideas, Graphics/Multimedia
Scientists believe that dust storms in the Sahara Desert are interfering with rainfall, which would increase drought. They use satellite images to support their theory.
Features: In the News