00:00World War III won't start with bombs or borders.
00:03It'll start with something as simple as turning on your faucet.
00:06For over a century, wars were fought over land and oil.
00:10But today, a silent crisis is brewing,
00:13one that's already shaping global power, and it's all about water.
00:17UN leaders warned us decades ago.
00:19The next war will be over water, they said now. That future is here.
00:23Over 300 regions are at risk of water conflict,
00:27from the Nile in Africa to the Indus in Asia,
00:30and even the mighty U.S. is drying up fast.
00:33Nearly half of America's watersheds could run dry by 2071,
00:37and 83 of them are already showing signs of collapse.
00:40The Colorado River no longer reaches the sea,
00:43and underground aquifers are being drained like never before.
00:47Rising temperatures mean faster evaporation.
00:50More droughts, less snow, shrinking reservoirs,
00:53yet the population keeps growing,
00:55and every American uses nearly 100 gallons of water, daily.
00:59By 2100, there'll be over 500 million people in the U.S.
01:04That's more water needed than nature can provide.
01:07So no, World War III may not be about land or politics.
01:11It might just be about thirst.
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