I should have been clearer. Formal temp reading documents from say the US Weather service have only been around for a short while, a century and a half I think.
However, climate scientists have used a number of methods to document things like the Ice Age, the Little Ice Age etc. Based on those readings, the Earth has certainly seen higher temps than we are seeing now and during periods where man was NOT putting any CO2 in the air, save his breath etc.
The documentary does a fine job of explaining it all. Moreover, man's contribution to total CO2 in the Earth's atmosphere is so small it is kind of silly.
The biggest contributo? The ocean.
Can we do without the Ocean?
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Originally Posted by Jump
I think you'd have to admit that your statement is a little confusing there Brucelee. It very clearly says "on record" yet you say "this is not quite true. It may be the warmest winter since they have been keeping records ". What isn't true?
Anyway, there is a warming trend. We don't know what is causing it for sure. We don't know what the long term effect of modern man continuing to throw crap into the environment/air is but it is hard to believe that it won't bite us in the ass eventually. There are scientists who believe it is biting us in the ass now. There are those that don't. It would be fun to continue this conversation in 20-30 years! I don't suppose you'd be willing to commit to keeping this forum up for that long  .
I'll try to find time to watch the documentary. |