Sylvia, have you heard of any successes or promising efforts in cutting those leaks from water pipes?
How much should water cost?
Is innovation in how water use in agriculture one of the keys to success in dealing with water shortages?
In part of South Asia and Africa, people now grow rice without flooding fields, for instance, using much less water. Is that a good example of changes that need to happen?
How important is climate change going to be in addressing these problems? How difficult does it make finding solutions, given the enormous uncertainties about how much the weather will change in each region, how warming might affect glaciers and so on?
Sylvia, certainly changing behavior is tough! We recently had a story about how farmers in Tanzania have pushed back against growing more resilient crops, saying they didn't like the taste! Meanwhile, in Malawi, farmers were urged to switch crops and ultimately found that some of the old ones worked better, so the government now advises these farmers to mix old and new varieties
Can water harvesting be a significant way to deal with the extremes?
How about water and sanitation issues? Is this largely about having enough water to drink, or how important is it that it's clean and enough is available for sanitation as well?
What role can social entrepreneurs play in addressing these water problems? And do you see any innovative funding ideas out there?
We're at the end of our chat - thanks for taking the time, and many thanks to Gary and Sylvia. Let's do this again sometime!