The second pressure on the planet is, of course the climate agenda -- the big issue -- where the policy interpretation of science is that it would be enough to stabilize greenhouse gases at 450 ppm to avoid average temperatures exceeding two degrees, to avoid the risk that we may be destabilizing the West Antarctic Ice Sheet, holding six meters -- level rising, the risk of destabilizing the Greenland Ice Sheet,
给地球的第二个压力，当然是气候议程， 一个大议题，往往科学影响着政策 有观点认为 将温室气体含量稳定在450ppm 从而避免温度 升高超过2度， 避免我们失去 南极西部的冰盖层融化， 水平面将升高6米的风险， 避免格陵兰冰盖融化的风险，