Ways of Hydrogen por Marcos de Oliveira
Environmental bus por Marcos de Oliveira
Compact device can reduce power outages por Gilberto Stam
Transgenic goats, rabbits, and cows produce drugs for human use por Carlos Fioravanti
What to do with the waste generated by mineral exploration por Suzel Tunes and Yuri Vasconcelos
New environmental practices foster the creation of agricultural startups por Sarah Schmidt
