The Inner Harbor Water Wheel is proving to be an effective answer to the city's water pollution problem.
The city's mayor says the move will boost cycling in decades to come, creating a greener and more sociable city.
Edward Burtynsky documents the environmental effects of oil extraction through striking landscape photography.
Organizers agreed that the annual marches have helped raise awareness about the mining project. But their work is far from done.
The film never flinches from the complex connections between economic and environmental problems.
First Nations groups say that the pipeline would disrupt their traditional seafood harvest and endanger their culture.
Solar power can be transformative in places where people have to walk for miles just to charge a cell phone.
The secret ingredient in Boston's prize winning tap water? Forest conservation.
The ban is set to go into effect in October 2014, and will be the first of its kind in the nation.
The viral success of "The Meatrix" shows how a good story trumps a mountain of facts.
Coal-fired power plants are responsible for about 40 percent of United States' carbon emissions. That pollution would be regulated for the first time under the new proposed rules.