When asked how GGNRA was changing its own driving patterns, she said the agency was having problems getting more fuel-efficient cars. "Right now we get all of our vehicles from the General Services Administration. They have been a little slow in getting us vehicles that get us closer to our goal." Specifically, GSA only offers flex-fuel automobiles that run on ethanol, a plant-based fuel that many environmentalists are criticizing as unsustainable. Furthermore, Castellini said there are no ethanol stations in San Francisco.
Even given the concrete actions the park system is taking, there are still a lot of big unanswered questions, said Castellini. What if Glacier National Park no longer has any glaciers? "What does it mean if our protected areas no longer protect what they were established to?" she asked.
The Irreplaceable campaign, which includes a photo exhibit (closing Dec. 31 at the Main Branch of the SFPL), is traveling the country, ending in Washington, DC, as part of a push for Congress to recognize the gravity of the problem. Mark Rockwell, director of the program, closed the seminar by saying, "The only constant in nature is change. Change is what we're going to have to become more comfortable with."
That includes human change.