"Tonight, I ask Congress to join me in pursuing a great goal. Let us build on the work we've done and reduce gasoline usage in the United States by 20 percent in the next 10 years."
To achieve this goal, the President explicitly suggested increased use of alternative fuels. But for information workers, a 20% reduction in gas usage is implicitly achieved by simply working from home 1 day a week.
We can drive more efficient cars, or we can drive less (preferably both). Emissions and supply dependencies are reduced either way. When email, calendars, voice, contact management, eMarketing, and financials are all accessible via the web, working from home becomes more than a reality. It becomes a practical and more efficient way of doing business.