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绿色和平组织最近的一项研究发现,互联网每年可以产生27吨放射性污染物。 事实上,互联网的耗电量相当于一个大型国家的耗电量,而且,互联网运转所需的电能,大部分来源于有污染的非可再生能源。 就谷歌搜索引擎而言,搜索一次的耗能可以让一个11瓦的灯泡工作一小时,这个数字可能听起来不算大,但是谷歌每日处理的搜索量大约为60亿次。这仅仅是谷歌一家的数字,还不包括Facebook、Twitter、雅虎、百度和其他互联网公司的能耗。 整个互联网系统运转每年所消耗的能源占全球能源消耗量的2%,大约为300亿千瓦时(TWH)。粗略估计,为了保证互联网运转,全世界需要30座核发电厂供电,相当于每年约1850万吨的二氧化碳排放量。 值得欣慰的是,互联网公司也在不断推出新的措施,来改善环境污染的问题。 Greenpeace’s 2014 “Clicking Clean” 报告 指出主要的云服务商,比如苹果,BOX,脸书,谷歌, Rackspace和Salesforce 已经承诺其数据中心100%使用可再生能源。