Green roofs can help to slow water runoff and reduce flooding, all while naturally cooling buildings and benefiting biodiversity. #ReasonsToBeCheerful has a good article about recent successes with green roofs in the Netherlands. These are next level green roofs with in-built computer regulated water flow.
“A study of Resilio’s blue-green roofs found they could capture up to 97 percent of extreme precipitation — considerably more than a conventional green roof, which typically captures around 12 percent, and more than conventional blue-green roofs, which capture around half.”
https://reasonstobecheerful.world/amsterdam-blue-green-roofs-smart-flooding/
