Retired buses travel around world. Buses considered too old, too polluting, or too unsafe for schoolchildren in the United States are being sold to other nations. [News Source]

Clearing the air. Scientists in Britain have developed a way to use ceramic to potentially slash the amount of climate-changing greenhouse gases pumped into our atmosphere by fossil fuel-fired power plants, which continue to dominate the electricity-generation landscape in North America. [News Source]

Valley may be greener, but we aren’t giving up driving. While Silicon Valley champions the environment like few places on earth, climbing into Priuses and paying premiums for alternative energy, most people here aren't willing to ditch their automobile to get to work. [News Source]

It sounds good, but turning garbage to energy has downsides, critics say. Drastically reducing the amount of garbage going to landfills while creating a clean energy source in the process - it sounds like the perfect solution to the world's environmental woes. [News Source]

Initiative aims to make Pittsburgh ‘greener’. The Pittsburgh Climate Protection Initiative is a grassroots program created to help the city come up with a plan to save energy and reduce greenhouse gas emissions. [News Source]