Robert Redford is jumping into environmental politics in upstate New York.
The actor/director, and founder of Utah's Sundance Institute, has recorded a series of radio ads aimed at pressuring New York Gov. Andrew Cuomo on the issue of "hydraulic fracturing" or "fracking," according to the news website Politics on the Hudson.
"Fracking" is a process in which water and chemicals are pumped into the ground to force up natural gas. It has meant a boom in natural-gas production in the United States, but critics argue the process puts dangerous chemicals into America's drinking water.