Currents

This past Earth Day, April 22, B-Cycle opened the first U.S. city-wide bike sharing program in Denver, Colorado.

Plans to expand solar power in the United States look a lot different from my seat in a cafe near Tiananmen Square in China than from my office in Northern California, where I am the CEO of one of Americas larger solar power companies.

The Green Mountain State has worked hard to maintain its rural, land-loving image, but policies protecting the environment have been slow to follow.

Rangeland ecosystems cover one-third of the land area in the U.S. and hold enormous potential for sequestering global warming-causing carbon emissions.

Results from DNA barcoding research conducted by the Sackler Institute for Comparative Genomics at the American Museum of Natural History suggest that tuna sushi purchased in supermarkets might actually be healthier than that from restaurants.

On the eve of the 40th anniversary of Earth Day, Dennis Hayes, coordinator of the first Earth Day in 1970 and International Chairman of Earth Day 2010, issued a reminder about protecting the highest standards for green building labels.

Living in the desert is challenging. We spent the week after Christmas in Baja, California, camping on the beach.

Americans have grown suspicious of tap water quality, yet it’s doubtful many could name a single contaminant they imagine spewing from their faucets.

In January, the U.S. Fish and Wildlife Service announced its plan to designate critical habitat areas in the Southwest for endangered jaguars.