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.

Dr. Peter Gleick, president and co-founder of the Pacific Institute and a renowned expert, innovator, and communicator on water and climate issues, asks the question about water wars occuring in the United States.

Read Gleick's article