1994年9月巴布亚新几内新亚不列颠岛上Vulcan火山和Tavurvur火山的爆发促使了人们去关注拉包尔废城,并关注火山喷发对地球气候的影响。各种媒体报告立即强调了尘埃在大气层上部积累并形成“全球太阳掩体”时可能产生的冷却效应(《每日电讯》,1994年9月20日)。现在人们已普遍认为,由于火山活动增加了大气混浊度,即降低了大气透明度,所以它产生强烈的尘幔效应。这种尘幔效应将太阳辐射散射回宇 The outbreak of Vulcan and Tavurvur volcanoes in Papua New Guinea's island of Barents, New Zealand, in September 1994 led to a focus on the city of Rambouilla and attention to the effects of volcanic eruptions on the Earth's climate. Various media reports immediately highlighted the cooling effect that dust may have when the dust accumulates in the upper atmosphere and forms the “global sun bunker” (Daily Telegraph, September 20, 1994). Now it is generally believed that due to volcanic activity increased atmospheric turbidity, which reduces the transparency of the atmosphere, so it produces a strong dust curtain effect. This duster effect scatters solar radiation back into space