SweetLemon

交通空氣污染應該都幾嚴重呀: c6 T% D& t0 G: P3 H9 T
free2penny 發表於 2016-7-12 09:30 PM

* x7 J; Q7 Q# Z  u公仔箱論壇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,bttvb2 V* A; a1 U( l: w, H) ~
SweetLemon 發表於 2016-7-14 10:34 AM + G' e/ W, O8 T9 [. B* P$ \
not enough trees in the city

tvb now,tvbnow,bttvb0 Q8 y7 [; ~% c& ]/ Q

1 K& p9 k) v  c& s5.39.217.76No, I read that when the leaves fall it released CO2 back to nature.
" Z0 f' t! ^9 q' T( I+ S5 r" ]0 cI don't know its true or not.