即将离开知乎

您即将离开知乎，请注意您的帐号和财产安全。

http://www.bing.com/images/search?q=global+cooling&view=detailv2&&id=7CE5B59CB06B41D03513D7FFEA52AD94C4097574&selectedIndex=14&ccid=0HXHpRS%2f&simid=608022247343129596&thid=OIP.Md075c7a514bff0e949eb7523a8c6a0deo0&ajaxhist=0