Brazil's emissions of greenhouse gases increased about 60 percent between 1990 and 2005, from 1.4 to 2.19 gigatons of carbon dioxide (CO2), Minister of Science and Technology Sergio Rezende said on Tuesday in Brasilia.

The new inventory of Brazilian emissions will be presented at the UN Climate Change Conference, to be held in late November in Cancun, Mexico, said the minister while addressing a forum on climate change.

The main cause of Brazil's carbon emissions is deforestation, responsible for 61 percent of the total, and the energy sector, which accounts for 15 percent. Emissions from the industry and waste treatment are responsible for 3 percent and 2 percent of the total, respectively.

According to Brazilian authorities' calculation, 1.77 gigatons of CO2 have been emitted in 2009, 33 percent less than in 2005, but these figures will not be presented in Cancun.

The reduction, according to Rezende, was due to the decline in deforestation in Brazilian Amazon in recent years, and subdued emissions growth in other sectors.