Gustavo Esteva provides with a very interesting view on present global issues.
You´ll also probably enjoy reading this piece by Gustavo on Unitierra (learning&community&playfulness...): http://www.gustavoesteva.com/english_site/back_from_the_future.htm
... and maybe some lines on Gustavo (here) too.
Where did I first knew about Gustavo and Unitierra? #WalkOutWalkOn , great book by Deborah Frieze and Meg Wheatley.
Eleder BuM31 Buru-mapak-Espazio Irekia-Sormena