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。
9 ^1 _4 F/ i9 E$ \5 USweetLemon 發表於 2016-7-14 10:34 AM tvb now,tvbnow,bttvb0 f: w3 |2 u( c. q o% O, N
not enough trees in the city tvb now,tvbnow,bttvb, q& V+ M6 C6 B. W3 M/ K5 x
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No, I read that when the leaves fall it released CO2 back to nature.tvb now,tvbnow,bttvb4 z$ h$ I; J4 `! d; \' ~+ t1 ~ V: p
I don't know its true or not. |