Wildfires tear through US west coast amid extreme heat wave

In This Story: Arizona

Arizona, a southwestern U.S. state, is best known for the Grand Canyon, the mile-deep chasm carved by the Colorado River. Flagstaff, a ponderosa pine–covered mountain town, is a major gateway to the Grand Canyon. Other natural sites include Saguaro National Park, protecting cactus-filled Sonoran Desert landscape.

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In This Story: California

California, a western U.S. state, stretches from the Mexican border along the Pacific for nearly 900 miles. Its terrain includes cliff-lined beaches, redwood forest, the Sierra Nevada Mountains, Central Valley farmland and the Mojave Desert. The city of Los Angeles is the seat of the Hollywood entertainment industry. Hilly San Francisco is known for the Golden Gate Bridge, Alcatraz Island and cable cars.

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In This Story: Climate

Climate is the long-term average of weather, typically averaged over a period of 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.

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In This Story: Climate Change

Climate Change is the name commonly given to the notion that the Earth is undergoing a changing climate as a result of human activity, including notable leaders, scientists and naturalists including Sir David Attenborough.

Climate change includes both the global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns.

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In This Story: Oregon

Oregon is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon’s northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42° north parallel delineates the southern boundary with California and Nevada.

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