pantanal threatened: The world's largest wetland, The Pantanal, spread across areas of Brazil, Paraguay and Bolivia, is under the threat of destruction by farming, urban development and climate change. A UN report says use of pesticide and fertilisers for soybean farming in Brazil's Mato Grosso state poses the biggest danger. Besides, large areas of the wetland are being cleared to grow new crops. The report also warns that even 4-5