Enpalo is an online calculator that lets you estimate the flight emissions of your next airplane jaunt—you choose an airline, enter your origin and destination, then sit back and light up a cigar while you laugh about how many baby polar bears you’re drowning.
Want a “real” energy audit, but don’t want to pay for it? Introducing the Department of Energy’s Home Energy Saver! It’s a very intense energy simulator that takes into account the shape and square footage of your house, how many windows you have, shade trees, you local climate, the direction your house faces, the age of your appliances…everything! The site then suggests upgrades and calculates how long it will take for energy efficient changes to pay for themselves. Very, very, very cool tool for consumers who already know the basics and want to do more. —MEGHANN MARCO