照最著名的气候-经济模型推算，这场大规模建设最终将把全球气温降低0.1摄氏度（约为0.2华氏度 ） ， 而海平面升高的幅度也只会减少1厘米（不到半英寸 ） 。
According to the best-known climate-economic model, this vast undertaking would likely wind up reducing global temperatures by just one-tenth of one degree centigrade (one-fifth of one degree Fahrenheit), while holding back sea-level rises by only one centimeter (less than half an inch).