In my second hard-hitting post of the day, I wish to direct your attention to this story about a man using balloons to travel 109 miles. It's carbon-neutral, and kinda poetic:
"Flying a gas balloon is unlike any other experience. There is no sound. No propellers, no jet engines. No burner, no heart-thumping rotors of a helicopter. Not even the wind that gliders experience. This is true, silent flight," Trappe said on his website. "When you launch a balloon, part of the wonder is that you do not know where you will land. You are carried with the wind, towards destinations unknown. It is a wonderful adventure, and it is the most pure form of flight."
It also made me think of this: