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

For only 6 mo, your will 比基线高 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： 

• 您说错了哦，那自行车生产过程也污染呀，干脆别骑车 -横海郡- ♂ (182 bytes) () 06/07/2009 postreply 09:05:40

• 确实，人类无时无刻不制造污染。 -海鸥飞处- ♂ (112 bytes) () 06/07/2009 postreply 12:41:45

• 你不是不知道自行车能走多远和走多快吧？ -海鸥飞处- ♂ (102 bytes) () 06/07/2009 postreply 12:39:05