I've been reading a lot about electric motorcycles, and I'm not convinced they provide the capabilities I want right now. I rode 10,000 miles across the USA and Canada this summer, and I can't imagine doing that on an electric bike any time soon. I've concluded that I'll be riding motorcycles like my BMW R1200RT and Triumph Bonneville T100 for many more years. So, it would be nice if my gaspowered motorcycle were as environmentally friendly as possible. I'm wondering why motorcycles aren't more environmentally friendly. Yes, bikes get better gas mileage than the typical car, and even produce less carbon dioxide. However, they produce signifcantly more carbon monoxide, hydrocarbons and nitric oxide. Given the signifcant interest in "green" everything, it would seem that motorcycle manufacturers would put more emphasis on reducing emissions.