Precipitation in the tundra totals 150 to 250 mm a year, including melted snow. That's less than most of the world's greatest deserts! Still, the tundra is usually a wet place because the low temperatures cause evaporation of water to be slow.
In this period, Brazil came back to the two party political system. With the return of democracy, in 1986, and the establishment of the 1988 Constitution, the multiparty political system was set back and several parties were founded.
Much of the public discontent was based on the high level of corruption that has tainted the highest echelons of business and politics in Brazil. Since the Workers' Party came to power in 2003, there has been a series of corruption scandals involving politicians from the governing party and also opposition parties.