If you so concern 能源和染物 why not ride a bike?

For only 6 mo, your will 比基線高 100%! If don't waste time and 能源(electricity, internet...) for this useless analyze, it will increase another 20%.
The truth is your chart didn't mean anything except season temperature fact.

所有跟帖： 

• 您說錯了哦，那自行車生產過程也汙染呀，幹脆別騎車 -橫海郡- ♂ (182 bytes) () 06/07/2009 postreply 09:05:40

• 確實，人類無時無刻不製造汙染。 -海鷗飛處- ♂ (112 bytes) () 06/07/2009 postreply 12:41:45

• 你不是不知道自行車能走多遠和走多快吧？ -海鷗飛處- ♂ (102 bytes) () 06/07/2009 postreply 12:39:05