Guardian: Erai Maggi does not look like a villain who is destroying the planet; nor does he look like a hero who is saving the world’s poor. Wearing jeans and work boots, he can be found on a typical day driving a battered Fiat car on one of his farms south of the Amazon rainforest. For someone who excites extreme views he seems miscast, neither Darth Vader nor Indiana Jones. But the 48-year-old Brazilian farmer is protagonist in a drama about climate change, globalisation, poverty and …