Greenpeace activists spread art through the streets of São Paulo with stencilling and reverse graffiti, in support of the struggle of the Munduruku indigenous people to protect the Tapajós River and their homeland. The day of action called "Tapajós Art" takes place in the cities of Rio de Janeiro, Porto Alegre, Florianópolis, Belo Horizonte, Salvador, São Luis do Maranhão, Imbé, São Paulo and Brasília.