After decades of negotiations and even a dramatic occupation of a dam in Chiahuaha state, two nations struggle to find a compromise.
Development is straining the river that Spanish explorers once called "the Arms of God."
Amid droughts, climate change and development, Todd Votteler has ideas for how Texas can prevent future conflict over resources.
Cities have long dumped their wastewater into streams and rivers. Even treated, the wastewater can pollute waterways and contaminate aquifers.