Effort to Revive Colorado River Delta

"We were able to persuade decision-makers in both countries that it was really time to turn the corner in the relationship and really try something different," [Environmental Defense Fund representative Jennifer] Pitt said. "That instead of unilateral actions on either side of the border with no particular concern for impacts on the other side of the border it would be better to have a collaborative approach." In 2012, the Mexican and American governments signed Minute 319, and the pulse flow was one of the provisions it contained. ... "During the months of late March and April, with the snow melt in the upper basin, a lot of water will come in a short period of time," he said. "So the pulse flow is mimicking that on a smaller scale." During the eight-week project, which ended on Sunday, just less than 1 percent of the river's annual average flow was released into the delta. Teams of scientists from enviro-nmental groups and universities have been closely monitoring the impact that the restored flow has had on this desiccated region.