. >> reporter: barry parkin, mars's chief sustainability officer, showed us the vast solar farm in new jersey the company built eight years ago. it now provides about 5% of the power used by the mars chocolate factory in nearby hackettstown, which churns out half of the m&m's sold in the u.s. parkin says the falling price of renewable energy technology, like solar, makes the investments pay off. >> we've done this at cost parity or better. in some cases, our costs are now lower as a result of using renewable energy. >> reporter: so, we're not going to see the price of m&m's skyrocketing because mars has made commitments to the environment? >> no, absolutely not. so, this is not just good for the environment. it's good for mars. it's good for consumers, and it's also good for the landowners that we're working with. >> reporter: mars has a long- term contract to buy the power produced by this massive wind farm in west texas-- enough to offset the electricity used in its entire u.s. operation. parkin believes that global efforts to curb climate change will eventually lead to fossil fuels

he has parkin know so's and diabetes. it would be difficult to move him.hey refewed help and they were worried about them. luckily they are safe. again, that scene plays out throughout the area. we talked to the sheriff's department and they don't have an assessment of the damage yet. they do say the sheriffs deputies are out here, scouring the areas trying to find out if anybody needs help. again, we wake up this morning and we talk about some of these areas that are just now learning about the flooding and the damage. we are getting the scope of it here in the early afternoon after the storm. i think i heard you and john talking a little bit ago about the toxicity and the dirty water. that's a big hazard as well. we talked through the stuff to get to these people's house. there was oil all over the place and chemical color and flash floating around and it's unhealthy here. that's something people have to contend with. this massive tree fell down and flipped off the power line. as this place digs out and tries to come out and everybody tries to get up and