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 Spanish wind turbine maker is laying off nearly 150 people from a western Pennsylvania plant.

See which 10 companies ranked on top.

Brazil's president says 'gringos' should pay Amazon nations to prevent deforestation, insisting Western nations have caused more past environmental destruction than loggers.

A leading climate change scientist whose private e-mails are included in thousands of documents that were stolen by hackers and posted online said Sunday the leaks may have been aimed at undermining next month's global climate summit in Denmark.

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.