Some historical perspective on climate change

bik0

(429 posts) Send PM | Profile | Ignore

Wed Dec-09-09 08:05 PM
Original message

Some historical perspective on climate change

Edited on Wed Dec-09-09 08:09 PM by bik0

Temperatures have gone up and down for hundreds of millions of years. Humans have only had an impact for the last hundred years. How can we explain warming periods prior to 1900? Solar activity, ocean currents etc.? How can we be sure that those same warming factors are not at play today? How can we point to CO2 as the ONLY explanation when warming and cooling is a natural phenomenon (prior to 1900)? When looking at temperature change over long periods of time, the warming this century is not out of the ordinary.

http://www.foresight.org/nanodot/?p=3553

Temperatures for the last 500 yrs...

last 1000 yrs...

last 4000 yrs...

last 10,000 yrs...

last 12,000 yrs...

last 50,000 yrs...

last 400,000 years...

Printer Friendly | Permalink | | Top

NYC_SKP

(1000+ posts) Send PM | Profile | Ignore

Wed Dec-09-09 08:13 PM
Response to Original message

1. You're going to want to post this over in the DU Energy/Environment Forum.

Where it will get a thorough discussion.

http://www.democraticunderground.com/discuss/duboard.php?az=show_topics&forum=115

:popcorn:

Printer Friendly | Permalink | | Top

bik0

(429 posts) Send PM | Profile | Ignore

Wed Dec-09-09 08:17 PM
Response to Reply #1

2. Will do. Thanks.

Printer Friendly | Permalink | | Top

Forkboy

(1000+ posts) Send PM | Profile | Ignore

Wed Dec-09-09 08:30 PM
Response to Original message

3. Somehow I could have guessed the post count.

Say hi to Inhofe for us!

Printer Friendly | Permalink | | Top

NYC_SKP

(1000+ posts) Send PM | Profile | Ignore

Wed Dec-09-09 08:46 PM
Response to Reply #3

4. It's posted in E/E now.

Funny thing is, there are those among us who take James' side on this one. :eyes:

Printer Friendly | Permalink | | Top

DU AdBot (1000+ posts)

Fri May 03rd 2024, 01:26 AM
Response to Original message

Advertisements [?]

Top

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators

Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.