因人类而不断加剧的气候变化或许终有一日让森林的碳排放量超过其吸收量。
The climate change we are hastening could one day leave us with forests that emit more carbon than they absorb.
在周四植树日，“城市森林之友”（FUF）会种植“替代树”。
On Thursday Planting Days, the FUF plants "replacement trees".
在周末植树日，“城市森林之友”（FUF）的志愿者会与普通市民一起植树。
On Weekend Planting Days, FUF volunteers work with common citizens to plant trees.
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