<p><span style="color: #333333; font-family: Arial, sans-serif; font-size: 12px; line-height: 19px;"><span style="font-style: normal;">Nearly 30 percent of the world's cotton supply comes from India and Pakistan, much of that from the Indus River Valley. On average, about 737 billion gallons are withdrawn from the Indus River annually to grow cotton—enough to provide Delhi residents with household water for more than two years.