Despite widespread poverty, Africa's middle class is now bigger than India's ... which hasn't escaped the likes of Walmart, KFC, and Nestle.
Does your tea habit promote deforestation, soil erosion, gushers of pesticides, and poverty wages? Probably -- even if it's Fair Trade, I'm sorry to say. But it doesn't have to.
The Chinese are moving quickly to fill the photovoltaic market created by the California Solar Initiative.
In today's Wall Street Journal, President Obama embraces a conservative frame for the coming discussion about the role of regulation.
Will Generation Y choose to live in smaller spaces and more walkable communities than their parents did?
The National Oil Spill Commission has given marching orders on how to prevent another disaster. But will Congress listen?
Competition from ever-cheaper photovoltaic panels could cool demand for solar thermal.
Venture capitalists, corporations, and governments worldwide pouring $243 billion into wind farms, solar power, electric cars, and other technologies.
Seven new solar farms would have the capacity at peak output to power more than 540,000 homes.