Carbon emissions as a growth industry? You bet. It's already a big deal and it's bound to become big money. Find out the what, how and when.

The weaker dollar has been sending commodity prices higher and while most of the energy sector has moved significantly up as well, natural gas has stayed relatively cheap. How can investors profit from natural gas?

The Chinese solar power company said it signed a new sales agreement to supply about 8 megawatts of photovoltaic modules to the Chinese domestic market.

See which 10 companies ranked on top.

Australia's parliament rejected laws to set up a sweeping carbon emissions trade scheme on Wednesday, scuttling a key policy of Prime Minister Kevin Rudd and setting a trigger for an early election.

The world's leaders must prioritize the issue of global warming above all else, the Dalai Lama said.

These are exciting times in the world of green. Washington is abuzz with the concept and Wall Street and Main Street are taking note. Thus, this special report—a starter's guide for investors.