3 ms·
This story about urban albedo interested me earlier [0]. Painting roofs and roads white, and simply having more green parks instead of paved areas would actual
by nonrandomstring 3y ago
This story about urban albedo interested me earlier [0].
Painting roofs and roads white, and simply having more green parks
instead of paved areas would actually make a difference.
[0] https://news.ycombinator.com/context?id=39356361 https://news.ycombinator.com/context?id=39356361
- kilotaras 3y agoUrban area is around half percent of earth area (2 mln km2 vs 510). Improving albedo there may have some local effect, but unlikely to contribute significantly to climate change mitigation.
- phreeza 3y agoSolar irradiation is around 1000 W/m2, and greenhouse gas forcing is about 2.5 W/m2, so it's not that outlandish.