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The Top 10 Lowest Radiation Cell Phones, 2013

The Environmental Working Group selected the top ten cell phones with the lowest amount of radiation. Results are listed by the maximum possible SAR level from the cell phone. SAR is…

Top Ten Greenest Colleges in the U.S., 2009

The Sierra Club selected the top ten most environmentally friendly colleges and universities in the country. Results are based on clean-energy purchases, green-building policies,…

Top Ten Most Polluted Places in the World, 2007

This Top Ten list was compiled by the Technical Advisory Board of the Blacksmith Institute, an environmental NGO based in New York. The criteria used in ranking the include the size of the affected…

Water Supply of the World

The Antarctic Icecap is the largest supply of fresh water, representing nearly 2% of the world's total of fresh and salt water. As can be seen from…

Least and Most Polluting Cars, 2008

The ACEEE's Green Book®, a buyer's guide to environmentally friendly passenger vehicles, rates cars according to their emissions and fuel consumption, and publishes an annual list of the “greenest”…

Least and Most Polluting Cars, 2014

The ACEEE's Green Book®, a buyer's guide to environmentally friendly passenger vehicles, rates cars according to their emissions and fuel consumption, and publishes an annual list…

Selected U.S. National Parks

by Elizabeth Olson photos by Carol M. Highsmith The U.S. National Park Service was created on August 25, 1916, by President Woodrow Wilson. In 1872, Yellowstone National Park became the…