Companies have always topped the list of the planet's biggest polluters. They've pumped smoke into the air and dumped dangerous toxins into rivers and lakes. They've razed forests and farmland and produced enormous quantities of greenhouse gases every year.
Environmental destruction in the name of big business is nothing new. People are so used to it, in fact, that it's newsworthy when companies work diligently to protect the environment. Some are making huge progress on that front, while others are just starting to be more environmentally responsible.
It's not enough, research suggests, especially as manufacturers in China, India and the U.S. continue to produce millions of tons of greenhouse gases each year. But it's a start. Read on to see 10 companies working to save the planet.