> Yangtze (China) Indus (India, Pakistan, China) Yellow (China) Hai (China) Nile (Egypt, Sudan, South Sudan, Ethiopia, Uganda, Democratic Republic of the Congo,

> Yangtze (China) Indus (India, Pakistan, China) Yellow (China) Hai (China) Nile (Egypt, Sudan, South Sudan, Ethiopia, Uganda, Democratic Republic of the Congo, Kenya, Tanzania, Rwanda, Burundi, Eritrea) Meghna (Bangladesh and I think India?) Pearl (China, Vietnam) Amur (Russia, China) Niger (Guinea, Mali, Niger, Benin, Nigeria) Mekong (China, Myanmar, Laos, Thailand, Cambodia, Vietnam) If you add up the populations that live within 100KM of those rivers you'd probably be approaching 50% of the human population.