Bee decline threatens US crop production

The first-ever study to map U.S. wild bees suggests they are disappearing in the country's most important farmlands—from California's Central Valley to the Midwest's corn belt and the Mississippi River valley.

Major California river adding key ingredient: water

A decade ago, environmentalists and the federal government agreed to revive a 150-mile stretch of California's second-longest river, an ambitious effort aimed at allowing salmon again to swim up to the Sierra Nevada foothills ...

The state, the drought and El Nino—a complicated relationship

Just last year, researchers were saying there was no end in sight for California's recent drought. During the past four years—the driest the state has been in a half-century— reservoirs and lake levels plummeted, leaves ...

Redirected flood waters lead to unintended consequences

An intricate system of basins, channels, and levees called the Headwaters Diversion carries water from the eastern Missouri Ozark Plateau to the Mississippi River south of Cape Girardeau. The system protects 1.2 million acres ...

Wild bee decline threatens US crop production

The first national study to map U.S. wild bees suggests they're disappearing in many of the country's most important farmlands—including California's Central Valley, the Midwest's corn belt, and the Mississippi River valley.

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