Flight. Drag racing. Radio controlled vehicles. Monster trucks, motocross... the list goes on and on. What list am I making? A list of activities or hobbies that could be considered by some to be environmentally irresponsible. Why? Let's examine some of them, starting with flight.

Much has been made regarding high-profile travelers, such as Al Gore and Mark Fields of Ford using jets to travel back and forth across the world, or even just our own country. Some believe that using systems already in place, such as by bus, boat or train, is more environmentally responsible. But, that is not where I was thinking of going with this editorial. I am thinking more along the lines of hobbyist flight, for instance ultralights. Some have been in love with the idea of flight for some time, ever since the Wright brothers proved it was possible. You know, environmentally speaking, there might not be anything wrong with it. Consider our past discussions of solar-powered flight and electric powered flight. Don't discount hang-gliding and parachuting. I have never done any of them, but I have heard from many that they offer an experience unlike any other. Also, there has been talk as of late about using biofuels as aircraft fuels.

Click past the break to read more about upcoming green hobbies, and submit your own in the comments!

Horizon Fuel Cell Technologies is really on a roll when it comes to making small play-things powered by hydrogen. We first showed you their H-Racer hydrogen fuel cell car, next told you they were working on a radio controlled version, and then, finally, we showed you the new radio controlled "jet" which uses a hydrogen fuel cell provided by Horizon for power, and now we bring news of their new hydrogen fuel cell radio controlled car, the H-cell. The vehicle is actually a kit designed to drop right into an existing Tamiya TT-01 chassis, and "combines an ultra-compact air-cooled, light emitting PEM fuel cell system, and a scaled down fuel storage system that can safely carry up to 30 liters of solid state hydrogen." The vehicle can reach speeds of up to 22 miles per hour, and utilizes ultra-capacitors to aid in the power delivery. The on-board hydrogen can power the vehicle for up to 70 minutes, and will run you $1,500 if you see this as a "must have". Hey, nobody ever said that technology is cheap!

Related:

• Video: Hydrogen fuel cell powered "jet" takes flight
• Hydrogen fuel-cell powered H-racer toy wins cool award
• Ouch! R/C fuel cell will cost $1,500

[Source: Horizon Fuel Cell]