It is too late to end the global freshwater crisis, but a sustainable water future is still possible. That is the takeaway thought from University of California-Irvine Professor Jay Famiglietti, who shared a TEDx talk on National Geographic.

An article in London's The Guardian reports on a warning by hundreds of scientists last week that a majority of the world's population, including in developed countries like the United States, is reaching a tipping point where easy access to fresh, clean water will no longer be easily available. They cite climate change, pollution and over-use of resources.