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U.S. Unveils $2.2 Billion Great Lakes Fix

The Obama administration has developed a five-year blueprint for rescuing the Great Lakes, a sprawling ecosystem plagued by toxic contamination and invasive species. The plan envisions spending more than $2.2 billion (U.S.) for long-awaited repairs after a century of damage to the lakes, which hold 20 percent of the world's fresh water.

Italian Ingenuity: Europe's First Zero Waste Town

Capannori, a rural town in the Italian province of Lucca, in Tuscany, boasts a proud history. Six years ago, it became a trendsetter and leader, not just in Italy but throughout all of Europe, as the continent's first Zero Waste town. Today, about 3.5 million Italian citizens carefully separate their waste into colored bags before leaving them on their doorsteps for collection. The movement has spread further, too, to other European countries.

Water-Cleaning Technology to Help Farmers

The giant solar receiver installed on a wheat field here in California's agricultural heartland slowly rotates to track the sun and capture its energy. The 377-foot array, however, does not generate electricity but instead creates heat used to desalinate water. It is part of a project developed by a San Francisco area start-up called WaterFX that is tapping an abundant, if contaminated, resource in this parched region: the billions of gallons of water that lie just below the surface.