In 1929, there were slightly more than two billion people living on the planet; today, there are 6.7 billion, and in 2050 there will be nine billion. All of them, thanks to globalization and new communication technologies, will strive for the same standard of living, give or take, which will necessarily lead to an overstretched global ecosystem.
1929年，大约只有20亿多一点的人口生活在这个星球上；而今天，大约有67亿人，到2050年将会有90亿人。由于全球化和新通信技术，所有这些人都会为标准化的生活（可能略有差异）而奋斗，这会导致全球生态系统的过渡扩张。