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Corn Waste for Biofuel Could Boost Emissions, Study Finds

The U.S. Department of Energy has been counting on leftover residue from corn cultivation—such as  stalks and cobs—as an abundant future source of renewable clean energy, and touted it as a potential goldmine for farmers as well.

But University of Nebraska-Lincoln (UNL) researchers may throw a damper on those plans, with a newly published study in the scientific journal Nature Climate Change. They calculated that harvesting the corn residue may actually result in the release more climate-altering carbon dioxide into the atmosphere than federal environmental regulations allow....

Earth Day Pioneer Denis Hayes’ New Challenge: Greenest Commercial Building in the World

Forty-four years ago today, Denis Hayes convened the very first Earth Day, an event that drew millions to events across the United States and heralded a new global awareness of the need to preserve our natural resources.

Hayes is now at the vanguard of an effort to rethink our buildings and, by extension, our growing cities. More than two thirds of the world’s population is expected to live in urban areas by 2050. The planning decisions made in those cities will have a lasting impact on the well-being of people within them....

10 concrete actions for helping wilderness this Earth Day

We know that Earth Day isn’t the only day of the year to show our passion for wilderness.

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