A Native American dancer conducts a ceremonial performance for the families attending the 4th Annual Earth Day Extravaganza aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 13, 2018. The purpose of the extravaganza is to bring families together and educate them on how to be better stewards of the Earth’s resources. (U.S. Marine Corps photo by Lance Cpl. Rachel K. Porter) - A Native American dancer conducts a ceremonial performance for the families attending the 4th Annual Earth Day Extravaganza aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 13, 2018. The purpose of the extravaganza is to bring families together and educate them on how to be better stewards of the Earth’s resources. (U.S. Marine Corps photo by Lance Cpl. Rachel K. Porter)

Participants navigate the Combat Center Bike Trail during the annual Earth Day Bike ride held aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 8, 2017. The 11-mile ride started at Range 100. (U.S. Marine Corps photo by Lance Cpl. Dave Flores) - Participants navigate the Combat Center Bike Trail during the annual Earth Day Bike ride held aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 8, 2017. The 11-mile ride started at Range 100. (U.S. Marine Corps photo by Lance Cpl. Dave Flores)