It Took All Of Human History Until The Year 1804 For Our Population To Reach Its First Billion Now A Billion New People Are Added Every Dozen Years In The Industrialized Worldjapan Europe And The United Statesbirthrates Are Falling Steeply While The Senior Citizen Population Is Booming In This Twohour Earth Day Special Nova Explores These And Other Trends In The Relationship Between People And The Planet
ترست بايلوت
منذ 4 أيام
منذ يوم واحد
