SweetLemon

交通空氣污染應該都幾嚴重呀
) {4 n7 g6 l0 V1 H& X: K9 f. y/ B) P9 L公仔箱論壇free2penny 發表於 2016-7-12 09:30 PM

# G1 a1 L! C# M5 itvb now,tvbnow,bttvb加拿大很多樹但也期望森林吸收掉人們無節制排放的二氧化碳。

SweetLemon

加拿大很多樹但也期望森林吸收掉人們無節制排放的二氧化碳。tvb now,tvbnow,bttvb0 G- [8 ~* m' C; T3 G; E: V+ J
SweetLemon 發表於 2016-7-14 10:34 AM
- f# A2 ]4 {! b7 q4 V7 L9 Jnot enough trees in the city

0 t7 i& v9 ?" o% ~
tvb now,tvbnow,bttvb" u; ^4 s7 m9 c
No, I read that when the leaves fall it released CO2 back to nature.
( v$ m. l" Y; h) Htvb now,tvbnow,bttvbI don't know its true or not.