Usually it's great to be No. 1, but not when it makes you the year's worst polluter. The Political Economy Research Institute has released its fifth annual Toxic 100 Air Polluters index, and no one wants to be on that list. Watch the following video to hear which companies were 2013's biggest polluters, and what it all means.
You may have noticed that many of those companies are involved in energy for transportation, but fuel doesn't have to be filthy. Forward-thinking energy players such as General Electric and Ford have already plowed sizable amounts of research capital into this little-known stock -- because they know it holds the key to the explosive profit power of the coming "no choice fuel revolution." Luckily, there's still time for you to get on board if you act quickly. All the details are inside an exclusive report from The Motley Fool. Click here for the full story!