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Your source for incisive, peer-reviewed articles that bring the insight and authority of our panel of experts and authors to bear on the most important ideas for creating a sustainable future.

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Many natural resource management and biodiversity conservation problems are so-called wicked problems.1 Such problems involve multiple stakeholders with differing objectives and for whom the chosen solution will have a significant impact. There is no single solution for a wicked problem and no simple solution. Reducing the impact of commercial shipping on marine mammals in the St. Lawrence River estuary, Quebec, Canada, is an example of one such wicked problem. The estuary and associated Gulf of St. Lawrence is an area of exceptional oceanographic and biological diversity and is frequented by large whales that use the area as a summer feeding ground. Part of the estuary has been designated as one of Canada's first marine protected areas: the Saguenay–St. Lawrence Marine Park...

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Cache Valley has an air pollution problem. Nestled in the northernmost extension of the Wasatch Mountain range, the beautiful 50-mile agricultural valley of approximately 125,000 residents straddles the Utah-Idaho border, and is home to Utah State University (USU) in Logan. Flanked by the Bear River Mountains to the east and the majestic Wellsville and Bannock Mountains to the west, the valley's bowl-like topography is prone to winter inversions. A lack of wind and an upper layer of warm air traps cold air and pollutants from motor vehicles, buildings, agriculture, and factories onto the valley floor. For several weeks during winter, news headlines often proclaim Cache Valley (as well as communities in Salt Lake and Utah counties) as having some of the worst air pollution in the nation...

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Access to sanitation has proved to be one of the toughest nuts to crack in international development, as evidenced by the fact that the Millennium Development Goal (MDG) target for sanitation, to...
In 1949, conservationist Aldo Leopold wrote that no important change in our ethical appreciation of nature could ever be accomplished "without an internal change in our intellectual emphasis,...
Every year, we lose an area of land roughly the size of Honduras to desertification, and 24 billion tons of fertile soil to erosion. This threatens the livelihoods of 1.5 billion people, and is...

In Focus

Environmental security has taken on new meaning in the twenty-first century as sustainability and natural resource...
The pathway for conversion to a renewable energy future has been pioneered by Denmark and a few other visionary nations. But...
If the United States intends to meet the Department of Energy’s goal of producing 20 percent of the nation’s electricity...
I fully agree with the idea that world population growth can—and should—be reversed through fertility rates that fall below...
The Guttmacher Institute provides estimates, covering various years in the last decade, of the proportions of all...