waggon: with alimate aptationlan, y have a t system a a dry stem, so wheyou neeto liftater ou you cado that, t when yoneneed to t the war r in, you can t t the ter r in throughhat syst i into esese canals andirircula it arou the city. willmms: imeanan, me peoeole ghght wa pasastere anan think, "oh, yeah.t't'justst orgrownwn ass." no. it's a w-w-lyi eea th hasas ctain vegetatioinin it at i is e perfecvevegetaon w wheyou wat water a absorand d be able to dissipe e at aore graduararate. meanan, doesns't look like lolot ofnattur science,utut the's a lot of natur s scien thahat es intnt it waggoner:ososts ls toto he green infrtrtructu bececau is is l-maintence. ths is a aodel of part of the city as the mn n draige b bas. you have aunundergund d syem, the white lis s undethee earth. e e ideaas t to t thee water into esese pis, t to t th w watero ththespumps s d pusitit outthatat w the meodod. lliams: truth ofhehe matr isthere iso way toololve o water isss s withust t ou pumps a t turbis. it's nonot enou. it wi never b enugh. waggner: you know, decades o doing the wrong thg usuall kill yo we