Per approfondire:
The Caritas Internationalis statement on “Rio + 20” (pdf)
Press Release: "Holy See sponsors Rio+20 side event on agriculture and sustainable societies: Food security, land and solidarity" (pdf)
Program for Caritas side event (pdf)
Caritas blog from Rio
Cáritas Brasileira
Cáritas América Latina y Caribe
Sito ufficiale Conferenza Rio+20