"Most non-domesticated life on earth is in decline and about 200 species a day are going extinct due to a wide range of environmental problems. Many humans are at risk of being harmed or killed by related problems this century. All of the many problems are caused by the same thing: humans have used non-renewable energy to explode their population from 1 billion to 7 billion in 100 years, and now consume so large a share of the earth’s resources that almost all non-domesticated species are in decline."