Walton has been one of the more active funders in the Gulf of Mexico lately, with a stated subprogram in the region for a few years now. In 2014 this massive water conservation funder gave its (relatively) small initiative a $3.7 million bump.
Since around 2005, the Walton Family Foundation has been pouring funds into environmental issues, with one of its main interests being the Colorado River. As part of the foundation’s freshwater conservation initiative, the funder gave $16.6 million to the cause just last year. Here's where it went.