SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Politics : PRESIDENT GEORGE W. BUSH
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: JDN who wrote (691220)7/10/2005 5:59:13 PM
From: Peter O'Brien  Read Replies (2) of 769670
 
Q. You make it sound as if an ice age could begin almost overnight. But didn’t we learn in school that ice ages begin slowly, over tens of thousands of years?

A. We learned wrong. In 1987 a research project called GRIP (Greenland Ice Core Project) began drilling deep cores into the ice in central Greenland. They drilled almost two miles deep, deep enough to reach ice that formed 250,000 years ago.

When they analyzed the cores, they found that every ice age during the past 250,000 years—and there were many—began abruptly.

Q. What do you mean by abruptly?

A. The climate descended from periods of warmth such as today’s—let me repeat that, from periods of warmth such as today’s—to full-blown glacial severity in less than twenty years. Perhaps in less than ten.

I want people to hear me on this. This is not theory. This is fact. Ice ages begin incredibly fast, and they do it from periods of warmth such as today’s.

(more excerpts from iceagenow.com, pretty interesting stuff)
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2026 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News