Being green isn't just for Kermit the Frog anymore. Entities across the world are embracing the environmentally friendly initiative and are working to make a difference.

Wal-Mart, a company that has been actively promoting its new green lifestyle, has taken on the task of converting 100 million homes to energy-saving fluorescent bulbs. Even though those bulbs use 75% less electricity and last up to 10 times longer than incandescent ones, the retail giant is facing an uphill battle by trying ...