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Urban vegetation: 1. Has high reflectance in the infrared, so they reflect sunlight back to the sky before it is converted to heat. Built surfaces would absorb
by sampo 10y ago
Urban vegetation:
1. Has high reflectance in the infrared, so they reflect sunlight back to the sky before it is converted to heat. Built surfaces would absorb this radiation and heat up.
2. Reduce heat also by evaporating water.
3. Reduce ground level heat by providing shadow.
4. Remove pollution from air, such as sulfur oxide (SO2), nitrogen oxides (NOx), ozone (O3) and fine particles.
But yes, converting these to money is very indirect and involves a lot estimation.
- tropo 10y agoUrban trees in Israel made the news last week. They were having a huge affect on heat and fine particles due to an urban forest fire. Next time, try ice plant and jade plant, or just go with concrete.
- mememachine 10y agoWhats the contribution of 1. to climate change? Insignificant?
- ajkjk 10y agoThe contribution of trees and albedo in general to climate change is huge. But I doubt that urban trees, specifically, contribute a significant effect. They do greatly contribute to avoiding the also-problematic urban heat-island effect, though.