Brazilian emissions set to plunge by 42 per cent on 2005 levels by 2030 as President Dilma Rousseff announces huge expansion of renewables sector to match.
Charging large emitters up to $50 a tonne for carbon emissions would produce the best result - but that price would also raise electricity costs more than any other .
Bank will dedicate $4 billion to fighting climate change by ramping up support for green energy - and spending on global warming will rise to 30 per cent of its financing.
Nations aiming for global climate pact in Paris in December must commit to a world where all 7 billion people have equal rights and access to electricity, opportunity, and justice, says minister.
