
Ninety percent of all existing biomass power plants use wood residue and there are currently 115 power plants in development that will burn biomass to generate electricity. But just how renewable is biomass energy?

“How do you know when you are in wilderness? When you have walked beyond where most people walk, when you have left the road … when the easiest route to walk is not a path tread by people but rather the path tread by wolves, moose and deer.”

(Updated Feb. 12, 2019) Earth Institute scientists can offer a wide range of expertise to journalists covering natural-gas production using hydraulic fracturing (hydrofracking). This includes basics of energy exploration and extraction; rock mechanics; contaminants in underground water; manmade earthquakes; and economic/political questions surrounding the practice. Here is a brief guide. (Click on hyperlinks for individual…

By Molly Powers When the Millennium Villages Project (MVP) was first launched in Ruhiira, Uganda, in 2006, community members identified their most pressing problem as lack of access to water. Nearly all 6,500 residents of the mountainous parish of Ruhiira live on hilltops, and most water sources

Three years ago, Irene Gaundi was living with her parents in the Millennium Village of Bonsaaso, in Ghana. She had completed her last year of secondary school, moved home, and was helping her mother sell second hand clothes. Each day, Irene and her mother walked along the rust-colored roads, beneath the hot sun, balancing clothes…

Climate Bonds to Fund Clean Energy Development, While Providing Fixed Income, Sustainable Business, Aug 9 In 2009, an international think tank decided the global bond market could play a central role in financing clean energy projects, while providing attractive fixed income returns to investors. The International Network for Sustainable Financial Markets launched the Climate Bonds Initiative to foster…

Two scientists at Lamont-Doherty Earth Observatory have been recognized for early-career achievement in the atmospheric sciences by the American Geophysical Union (AGU), the world’s largest earth-sciences organization. Tiffany Shaw, 31, is a physicist who uses computer models and mathematical equations to study the basic dynamics of the atmosphere and climate, for instance, how the jet…

Mountaintop removal mining, an environmentally devastating form of coal mining that involves blowing off the tops of mountains, has already leveled over 500 mountains and buried 1,200 miles of streams in the Appalachians.

People are swimming in the Hudson again, and while clumps of sewage rarely float by anymore, the water is not reliably clean, says a report released this week from the environmental group Riverkeeper. Four years of testing by Riverkeeper and Columbia’s Lamont-Doherty Earth Observatory, show recurring hot spots, especially after rain, when overwhelmed sewers divert…