Included in the signoff for my emails is reference to the 58 percent decimation of wildlife in just the last four decades, driven largely by loss of habitat due to increasing human demands as world population continues its upward trajectory.According to the “World Population Prospects: The 2017 Revision,” published recently by the UN Department of Economic and Social Affairs, we add 83 million people annually. By 2030, Earth’s population will be 8.6 billion. Then, 9.8 billion in 2050 and 11.2 billion in 2100.