As the climate changes, ski resorts have begun relying more on machine-made snow, which comes with environmental consequences and limitations.

Kolina Coe, director of mountain operations at Keystone Resort, explains the workings of one of the mountain's 672 snowmaking guns. Photo Credit: Robert Silk KEYSTONE, Colo. -- The slopes at Keystone ...

[Mattmopar] figured out how to get a white Christmas even if the weather isn’t frightful. He built a simple DIY snow making machine with a few plumbing parts, and tools you probably already have.

Correction: The original version of this column incorrectly stated that “most of the energy” for snowmaking comes from fossil fuels. Locally, resorts that receive their electricity from Holy Cross ...