Eric Holthaus, who has vowed never to fly again so as to reduce his carbon footprint, took a bus from Wisconsin to Georgia in order to attend a conference. Why he thinks buses are the way to go:
From both a climate and financial standpoint, there’s a clear case to take the bus. From a butt-numbness standard, the bus isn’t quite there yet in the United States. However, the rise of limited-stop intercity operators like Megabus is helping the United States to quickly catch up to the rest of the world in terms of frequency and comfort on long-haul bus rides. In Chile, a spread-out country that has embraced long-distance buses, you can easily and cheaply snag a first-class quality experience with meals, Internet, live TV, and a lay-flat bed in every seat.
Buses are the most climate-friendly mode of transportation per passenger mile next to walking or riding a bike. This makes sense: There’s no need to accelerate hundreds of tons of aluminum to nearly the speed of sound, or to push thousands of tons of steel along 19th-century rail routes. Even a Prius is dragging along lots of extra weight just to move you down the road, especially if you’re solo, as most car trips are.