And those conditions are set to deteriorate further, as rapid population growth puts even greater strain on resources. The surge in carbon dioxide emissions has been fueled not just by industrialization; the UN expects Earth’s human population to reach 9.7 billion by 2050 and 11.2 billion by 2100.
而上述条件注定会进一步恶化，因为快速人口增长进一步加剧了资源紧张的局面。二氧化碳排放量激增已不仅因为工业化；联合国预计地球人口将在2050年达97亿，2100年达到112亿之多。