Laos is just one of the emerging markets where China’s green-tech revolution is installing more than cheap energy. Wind turbines from the Monsoon Wind Power Project in Dak Cheung, Laos, transmit power ...

The phrase is bandied about more and more, but what do people really mean by green tech? What makes a green tech investment different from another? And why is green tech innovation so expensive?

For centuries, small-scale gold miners have used highly toxic mercury to extract tiny particles of gold from crushed ore. If not carefully managed, the resulting slurry can be devastating to the ...