Former environment minister and presidential candidate Marina Silva has launched a new political party with an eye on next year's presidential elections.

The new party is called "Sustainability Network." It was launched in Brasilia Saturday at a meeting of politicians, congressmen and other Silva supporters.

Marina said "it is not a party created just for the elections" and said it "calls for a new vision of the world, in which we will be participants and not just spectators."

Silva did not say if she plans to run for the presidency in 2014. Marina served in the Cabinet of former President Luiz Inacio Lula da Silva.

She won a surprising 20 million votes, or 19 percent of the total, in a first round of voting when she ran for president in 2010.