Dallas activist leader and Green Source DFW Sustainable Leadership Award winner Rita Beving speaks outside a Texas Water Development Board hearing in Arlington in May against the proposed Marvin Nichols Reservoir. Photo courtesy of Texas Green Report.
Once the most abundant bird in North America, passenger pigeons were driven to extinction during the 19th century. Passenger pigeon expert Joel Greenberg will be sharing their cautionary tale at the Heard Museum in McKinney on Aug. 12.
The world's population is now up to 7.2 billion. Population Media Center, whose Texas headquarters is located in Fort Worth, performs outreach on issues related to population in 50 countries. Images courtesy of Population Media Center.