Of the first variety, injecting sunlight-reflecting sulphate aerosols into the upper atmosphere is a relatively cheap, easy and quick option.

对于第一种方式，在上层大气注入阳光反射硫盐酸气溶胶是一个相对便宜、简单、快捷的选择。

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Any effect from modern changes in solar activity is likely to be dwarfed by greenhouse gas emissions and associated issues such as sulphate aerosols.

近现代时期，和温室气体及硫酸盐气溶胶相比，太阳活动的影响更是相形见绌。

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Any effect from modern changes in solar activity is likely to be dwarfed by greenhouse gas emissions and associated issues such as sulphate aerosols.

近现代时期，和温室气体及硫酸盐气溶胶相比，太阳活动的影响更是相形见绌。

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