While the Obama administration’s new climate regulations target carbon emissions from power plants, they are also setting the stage for negotiations on a global climate pact scheduled for next year. On June 2, the U.S. Environmental Protection Agency (EPA) unveiled the “Clean Power Plan,” which aims to cut carbon emissions from U.S. power plants by 30 percent compared to 2005 levels. “Although we limit pollutants like mercury, sulfur and arsenic,” said EPA administrator Gina McCarthy in remarks announcing the new rules, “there are no limits on carbon pollution from power plants, our nation’s largest source” of such pollution. Ultimately, she […]

The introduction of sedentary farming was a cornerstone in the establishment of human civilizations. However, farming in its essence is a major modification of the natural landscape. Establishment of farming requires leveling lands, damming rivers, eradicating wildlife and clear-cutting forests. Over time, human knowledge has expanded, and modification of nature for agricultural purposes has become more effective and efficient—the horse-drawn plow has been replaced with the tractor, and natural fertilizers with chemicals. Yet, there is growing realization that some of the human modification of natural systems might have been excessive, which has led to environmental awareness and legislation that aims […]