How to eat for a healthier planetReal versus fake Christmas trees: Which one's greener? At least two studies have looked into this — one funded by the American Christmas Tree Association, which represents artificial tree manufacturers, and an independent study by Montreal-based environmental consulting firm Ellipsos. The main problem with real trees is the impact of Christmas tree farms, which in some cases displace natural ecosystems, Ellipsos found. That said, both studies found the overall environmental impact of buying a Christmas tree is minimal compared to, say, flying or driving a few hours to spend Christmas with family and friends. The Big Picture: Sources of carbon emissionsThere's a lot of talk about the need for us to cut carbon emissions.

Source: CBC News December 07, 2018 09:00 UTC