You Don't Have to Be a Tree Hugger to Consider These Environment Plays

The environment isn't the hot-button issue it once was. But that doesn't mean the problems have been solved. Consider:

North America produces about 300 million used tires every year. The current stockpile exceeds 900 million, and right now there's no clean, economic way to get rid of them. They're expensive to recycle, dirty to burn and they don't compost.

North American hospitals produce about four pounds of hazardous waste per bed per day. That's nearly 2 million tons a year, much of it too toxic for landfills. But incinerating it is costly, dirty and, increasingly, unpopular. ...