When was the technology invented to measure temperature accurately to within one-tenth of a degree? We are told that the Earth has warmed by 0.70 degrees. But how far back in time do accurate measurements go? Didn't we invent thermometers (other than very crude models) only about 150 years ago?
2007-11-14 13:33:57 · 5 answers · asked by Anonymous in Politics & Government ➔ Other - Politics & Government
You don't need a thermometer to know there was an ice age or to know that in 900 AD Vikings were growing crops in Greenland. The well documented climate swings in our recent past are all you really need to know to understand that we live on a dynamic Planet that has had climate swings thousands of times.
2007-11-14 13:37:32 · answer #1 · answered by booman17 7 · 0⤊ 0⤋
I see you are going somewhere with this.
And you are correct more or less with the record keeping.
The smaller increments of measuring have only been since the late 60s.
2007-11-14 13:51:32 · answer #2 · answered by CFB 5 · 0⤊ 0⤋
ice core samples and proxy models can measure temperature going back hundreds, even thousands of years, to within a hundredth of a degree.
2007-11-14 14:05:40 · answer #3 · answered by . 3 · 0⤊ 1⤋
Actually they were invented in the early 1600's
2007-11-14 13:38:42 · answer #4 · answered by Anonymous · 1⤊ 1⤋
Why is this in the Politics and Government section?
2007-11-14 13:38:41 · answer #5 · answered by Sordenhiemer 7 · 0⤊ 1⤋