According to the fast-food business, McDonald's Happy Meal toys will soon be manufactured primarily of corn and other materials rather than fossil fuel-based plastic. Some international markets have already made a move, and it is scheduled to be completed universally by 2025.

Companies are increasingly adopting the sustainability movement, a trend that has accelerated in recent years. According to research done by Xerox, the number of American businesses having official green programs in place has increased by 54 percent.

"Sustainability has become a concern for businesses," says Eliza Erskine, founder of Green Buoy Consulting. Her firm works with companies to design and evaluate sustainability initiatives. "It will take all of us to make a difference, and people are starting to recognize that 'we' includes businesses."

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