The (real) 74-foot Christmas tree at Rockefeller Center in New York.
Photo credit: New York Times

In these eco-conscious times, many people want to shrink their environmental footprint while still enjoying the trappings of the holiday season. In some cases, the earth-friendly alternative – pass the tofurky – is a pretty obvious choice.

But in others, the answer is not so clear. When it comes to Christmas trees, for instance, which is better for the planet: the long-lasting artificial kind, or the freshly cut, pine-scent-and-sap variety?