What are trees worth?
...storm water, they pull the filth from our streets into the soil, and the soil cleans it, pro bono. (This is one of the many benefits of healthy soil, another important player in environmental health.) If that storm water runs unchecked, it just dumps all of the oil and fertilizer and insecticides and poo straight into the nearest waterway. Trees absorb and store carbon, directly mitigating climate change–and they indirectly mitigate the change as...