Total external renewable surface water

(billion cubic meters per year)

Brazil is the top country by total external renewable surface water in the world. As of 2020, total external renewable surface water in Brazil was 2,986 billion cubic meters per year that accounts for 25.36% of the world's total external renewable surface water. The top 5 countries (others are Bangladesh, Congo, Argentina, and Viet Nam) account for 49.50% of it. The world's total total external renewable surface water was estimated at 11,772.3 billion cubic meters per year in 2020.

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What is total external renewable surface water?

This is the sum of the actual inflow not submitted to treaties, actual inflow secured through treaties, the accounted flow of border rivers and the accounted part of shared lakes, minus the outflow reserved for downstream countries through treaties