Canadá and Brazil have plenty of fresh water. More than most parts of the world. Brazilian waters are on aquifers, the Guarani aquifer being the largest; and on rivers.
A lot of it, we now know, is also over the Amazon Forest canopy, like flying rivers, formed by humid air currents and clouds. The flow of the flying rivers rival the flow of the huge Amazon rivers. Researchers from the University of the State of Pará have recently found a huge aquifer under the States of Amazonas, Pará and Amapá, in the Amazon region. It may contain as much as 86,000 cubic Km of water. The Amazon is an extraordinary reservoir of water and humidity, about 15% of total world fresh water.