we d, we d bring whatever went into our body. it comes out and we cannot speak about it do makes no sense with it. i don t say, i don t say toilet or excrement because it doesn t help with those until that day. with i want to talk to you today about toilet. we re not allowed to say, and that s part of the problem in we refused the words because we refused the reality. on average, a human produce is more than 70 killers of excrement per year. globally, that represents 550000000 tons of ways to which must be evacuated and treated excellent management worldwide poses a sanitation, an ecological challenge, which we almost never talk about. and yet, you probably don t know that we are experiencing a huge toilet revolution. 10 years ago mil gate to explore the world for his foundation, discovered that pope kills. according to the world health organization, half the world s population doesn t have safe toilets. nearly 700000000 human beings deviate outside. the problem is that poor