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平流層氣溶膠噴射方案能遏製地球變暖嗎？

Republic ofUnited statesHarvard universityUnited states kang nair universityMission is researchUnited states harvard universitya branch researchEarth sina technology newsEarth sina technology news beijingUnited states harvard universityBranch researchNorthern hemisphereSweden northPhysics professor davidDouglas professorகுடியரசு ஆஃப்ஒன்றுபட்டது மாநிலங்களில்

平流层气溶胶喷射方案能遏制地球变暖吗？

　　例如：火山爆发会将尘粒云喷射到平流层，形成一层防护屏障，阻止部分太阳热量到达地球表面，1991年菲律宾皮纳图博火山爆发，导致北半球平均温度在随后的15个月里下降了0.5摄氏度，目前SCoPEx研究团队希望通过向上层大气注入粒子来降低温度，从而借鉴此类火山爆发的降温效应。 　　这个被称为“平流层气溶胶喷射（SAI）”的基本方案很简单，高空飞行下的飞机或者氦气球将气溶胶的微小颗粒散播在距离地面20公里的平流层，该高度比飞机通常飞行的高度更高一些。这些悬浮微粒会一直悬浮在空中，由于其体积太小无法观测到，但大气中气溶胶数量较多时形成的云层可将部分太阳热量反射至太空中。 　　在模拟实验中，平流层气溶胶喷射似乎是一个可行的概念，2018年，政府间气候变化专门委员会（IPCC）一份研究报告显示，一批高空飞

Republic ofUnited statesLi qi burnsDouglas mike martinHarvard universityHarvard university application physics professor davidUnited states cornell universityMission is researchSina scienceBranch researchAngels earthNorthern hemisphereFrank professorSweden northDouglas mike martin professorManaging director li qi burns

平流層氣溶膠噴射方案能阻止地球變暖嗎？

Republic ofUnited statesHarvard universityUnited states kang nair universityMission is researchUnited states harvard universitya branch researchUnited states harvard universityBranch researchNorthern hemisphereSweden northPhysics professor davidDouglas professorகுடியரசு ஆஃப்ஒன்றுபட்டது மாநிலங்களில்ஹார்வர்ட் பல்கலைக்கழகம்ஒன்றுபட்டது மாநிலங்களில் ஹார்வர்ட் பல்கலைக்கழகம்

期待！圆明园博物馆今年启动建设-新闻中心-南海网

期待！圆明园博物馆今年启动建设-新闻中心-南海网
hinews.cn - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from hinews.cn Daily Mail and Mail on Sunday newspapers.

China generalSouth china seaBrunei generalYuanmingyuan museumCenter haidian museum new hallWanquanhe tsinghua universityYuanmingyuan tsinghua universityMission is researchPratt whitneyCenter south china seaHistory river wanquanhe tsinghua universityXi schoolHigh schoolUniversity parka lakeImage tsinghua universityTsinghua university

北京海淀：圆明园博物馆今年启动建设-中新网

北京海淀：圆明园博物馆今年启动建设-中新网
chinanews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from chinanews.com Daily Mail and Mail on Sunday newspapers.

China generalUnited statesYuanmingyuan museumCenter haidian museum new hallWanquanhe tsinghua universityYuanmingyuan tsinghua universityMission is researchPratt whitneyHistory river wanquanhe tsinghua universityXi schoolHigh schoolHaidian yuanmingyuan museumUniversity parka lakeImage tsinghua universityTsinghua universityEnglish school zhongguancun
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