Public-Private-NGO Conservation Alliance Invests $100 Million in Mexico

The six regions - the Gulf of California, Chihuahuan Desert, Mesoamerican Reef of Mexico, the Monarch Butterfly Region, and the states of Chiapas and Oaxaca - collectively represent 30 percent of the country.

"Carlos Slim is one of the world's most important philanthropists and most people have never heard about his humanitarian activities," said former U.S. President Bill Clinton.