Some 60 civil society organizations, including farmers' groups, have joined forces in Argentina to fight the construction of the Corpus dam on the Paraná River, a joint Paraguay-Argentina project that was already rejected in a 1996 plebiscite. The movement, with support from Catholic and Baptist religious groups, opposes the government's initiative to revive plans to build a four-billion-dollar hydroelectric plant shared by the Argentine province of Misiones and Paraguay's Itapúa province.

The project was rejected five years ago by 90 percent of the participants in a Misiones plebiscite, which had a turnout of 63 percent of registered voters.