And like many a fellow environmentalist, she is concerned that urban sprawl is now encroaching on surrounding conservation areas like Lake Mead, Spring Mountain and Red Rock Canyon.

BBC: NEWS | Science/Nature | Vegas heading for 'dry future'

The telephone will work in a car, which has only a thin metal roof, but it might not beside a mountain or in an urban canyon in Manhattan.

ECONOMIST: Staying in touch | The

One of the worst has been the Waldo Canyon Fire, which last week roared down a mountain and razed nearly 350 homes in western neighborhoods of Colorado Springs.

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