There was Hurricane Harvey in Houston, Hurricane Maria in Puerto Rico, the Mexico City earthquake and the Northern California wildfires. In the aftermath of natural disasters, nonprofits are often on the front lines working on relief and recovery efforts.

There was Hurricane Harvey in Houston, Hurricane Maria in Puerto Rico, the Mexico City earthquake and the Northern California wildfires. In the aftermath of natural disasters, nonprofits are often on the front lines working on relief and recovery efforts.

The United States and Mexico have agreed to update and extend a 2012 deal through which Americans invest millions of dollars in Mexican water conservation in exchange for a share of Mexico’s Colorado River water.

The deal spreads the costs of conservation and the pain of future droughts and shortages across the river’s millions of users north and south. The river supplies water to about 40 million Americans from Denver to Los Angeles.

SANTA FE, N.M. (AP) — The United States and Mexico unveiled an agreement Wednesday to preserve the overtaxed Colorado River, including spending millions of dollars on conservation and environmental projects and drawing up plans to deal with any shortages amid drought and climate change.

The United States pledged to invest $31.5 million in water conservation projects in Mexico, such as lining irrigation ditches with concrete to reduce leaks and upgrading irrigation equipment to use less water.