$this->bbcode_second_pass_quote('evilgenius', '')$this->bbcode_second_pass_quote('baha', 'F')or a tree hugger, I really love chainsaw's.

I don't think a better more useful tool has ever been invented. The amount of work one person can do is amazing. I have used a crosscut saw. It would take a day to do the work a chainsaw can do in about 15 minutes.
But I hate 2-stroke engines. They are dirty and run rough. I used to spend as much time maintaining as using them. The efficiency is pitiful. So I replaced mine with a cordless lithium powered unit. I take the battery from the off-grid solar powered charger and plug it in the saw and start cutting. It still uses bar oil but there is no smoke or noise involved. I have two 4 amp hour batteries that will do me for about an hour. And the price of cordless tool batteries is falling fast. I know it won't last forever, but for now, the only infrastructure I need is a quart of bar oil/year.
Our Lithium slaves are ready to step up to the plate. They may not be as strong, but they are very clean-cut and efficient.

BTW - I also have a 15' pole saw, string trimmer, drill, impact driver, skill saw, sawzall, radio, light, and air compressor. All use the same battery packs and all solar powered

Yeah, man, gas powered chainsaws are great, until they won' t start. I've been looking at the electric variety. I saw one at Harbor Freight. It wasn't that expensive, but I don't need it headed into winter.