When world leaders meet at G-20 in Germany on Friday and Saturday to discuss global issues, they'll spend some time talking about something everyone on Earth depends on: keeping agriculture sustainable as we use more and more water.
By 2050, 9 billion people will need food, which will call for a 50 percent increase in agricultural production — and will use even more water.
G-20's agricultural ministers say we won't be able to feed everyone unless we get more efficient with our water. But even though it's a huge order, there are plenty of ways to go about it.
And in January, G-20's agriculture group committed to building sustainable water policies that reach across government and industry. The more that farmers and policymakers understand about the scope of the challenge, the easier it will be to meet it.