 I used to just write my name on the streets, Mundano. But I realized that I could do more on the streets, because the people are on the streets. So I became an artist. I do graffiti with social, political, environmental issues. I painted uncountable walls, gates, doors, everything I see I paint, but always with directed messages to make people think. You think about the real things in the world, the real problems to start a collective change, because I believe that art can do that. I know that. And if I paint your gate, your gate, your door, your window, sorry, it was for a good reason. Thank you. But five years ago, I painted for the first time in my life something invisible. The invisible thing were the carousels. Cards pushed by people, like the slaves. These people collect recyclable materials from the streets. They support their families. Do they live with our waste? And they are invisible. So I started a life project to give them visibility, self-steam, and recognition. And this changed my life. You probably are thinking, why are they invisible? I'll give you an example. They work in the middle of the city calls. Silently, they collect a big part of all the trash that we actually recycled on our planet. But I have a better example. How many cathedrals do you see today? Coming to here? No, I counted. 12 is real. So this is a perfect example. They do a work for everybody, nobody noticed then. Or when noticed, there is a homeless there. It's totally wrong. And how about you on the internet? How it's happening in your city? Tell me. Here in São Paulo is a shame. We recycle just 1%. And 90% of these are collected by the cathedrals. They are not homeless. They are unemployed people working honestly. And I want to change this. And that's what I'm trying to do. I paint those cards to give them recognition. I painted 160 cards in different cities. Putting local masses to make people think about this real problem. But this is a real solution, too. I want to give visibility to them. This is my life mission. Like this one is right then. One cathedrals do more than an environmental minister. That is true. And the people that didn't notice then started to notice and say, oh, you are right. I agree with you. And give a smile to them for the first time. So this guy teaching me a lot of things. What an incredible teacher. I spent hours and hours with them. And I learned a new way to see the city. A new way to see these cars. A new way to see the people. A new way to do my art. A new way to do activism. And I went to share with you. This was a big mistake of mine. Because I was doing this alone for years. I didn't share those smiles, this happiness. This stimulated me to be here. Because I was anonymous. Because of the TED, I started to put my face for everybody to see. Because now I'm proud that I do. And I started a Pink My Carrossa, a collective project. Thank you. Because now it's collaborative. Everyone is in. So I did this project for everybody come with ideas. And it was crowdfunded and become a hit in Brazil. So this is the center of Sao Paulo. Over a thousand people took the streets. And have the first interact with the cathedrals for the first time in their lives. So it was incredible. We transformed those cars. We put new wheels. We put security items. We paint those cars. Give them visibility. Mirrors. We give them a lot of security items like raincoats. We give gloves. We give them visibility. We did this with passion. We gave them glasses to see how definition the city looked. So this now is collective. But the problem exists is not invisible anymore. This photo was taken a few days ago. And the thing is waste, trash is not a problem. Trash is a solution for social problems. So I wish I could speak these in Portuguese to pass more passion. But I will resume. The book is on the table. The art are on the streets. The trash are in the carrossas. And the cathedrals is now visible. Thank you.