It’s easy to sit at your desk at home, telecommuting and think how much you’re saving the environment by not driving one of those fossil-fueled cars on the Interstate.Today, New Scientist had this to say about that: Not so fast. Estimates quoted by the magazine were that it may take 152 billion (yes, with a B) kilowatt hours per year to power just the data centers that keep the Internet from turning off. That doesn’t include the energy used by, say, your laptop and router and printer and everyone else’s computers,