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有人强调说,存在着许多负成本性的缓解机会,估计2030年可达到减少温室气体排放量约6 gt co2 eq.。
it was emphasized that there are many mitigation opportunities with negative costs, estimated to be able to reduce ghg emissions by around 6 gt co2 eq. in 2030.
stern report17 推断出稳定排放在550ppm co2-eq 的代价平均为全球gdp的10%,到2015年接近于1340亿美元和2050年18 为9300亿美元。
the stern report concluded that the cost of stabilizing emissions at 550 ppm co2-eq would average 1 percent of global gdp, approximately $134 billion in 2015 and $930 billion in 2050
美国政府估算的氢氟碳化合物逐步减少的累计惠益为,到2020年减少量达到3,100百万公吨二氧化碳当量(mmt co2 eq),到2050年达到约88,000百万公吨二氧化碳当量。
cumulative benefits of the hfc phasedown estimated by the u.s. government amount to reductions of 3,100 million metric tons of carbon dioxide equivalent (mmt co2 eq) through 2020, and around 88,000 mmt co2 eq through 2050.
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