It will be held at the Pontifical Catholic University (PUC-Rio), in Rio de Janeiro, Brazil.

UNESCO: Indigenous Peoples

Just 1% of smart meter-equipped homes in California have such programs, according to the California PUC.

FORBES: Energy

"Energy rationing, if put in place, would reduce Ms Rousseff's chances of re-election in 2014, " says Ricardo Ismael, a political scientist at the Catholic University (PUC) in Rio de Janeiro told the BBC.

BBC: Brazil drought stokes worries over energy shortages