Still others argue that volcanic dust injected into the atmosphere shields Earth from the Sun's rays and initiates an ice age.
还有人认为，注入大气的火山灰保护地球免受太阳辐射，并开启了一段冰河时代。
Still others argue that volcanic dust injected into the atmosphere shields Earth from the Sun's rays and initiates an ice age.
还有人认为，注入大气的火山灰保护地球免受太阳辐射，并开启了一段冰河时代。
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