Current Events — HabitableZone

Current Events » in reply to re: You do understand that this is an accelerating process?

PT 2
R.L. — (archived)

If you think it's mostly due to CO2 emitted by human activity & does rising global temperate correspond to increasing level of CO2 emitted by human activity. If not explain, why there isn't a direct relation. Or put it this way, how much CO2 was emitted yearly by human activity in say 1950, and how much was emitted in say 1990.

http://upload.wikimedia.org/wikipedia/en/b/bb/Major_greenhouse_gas_trends.png


As CO2 goes up so does temperature- we understand the principles of why this is the case, why do you find this hard to believe? Do you think the National Acadamy of the Sciences is lying? We KNOW this increase is due to human activity from isotope analysis.

What causes global cooling [ice ages]?

Lots of things... that is a stupid question...

Do you accept that there was a period known as Little Ice Age?

Yes, do you accept that the current temperature change is far more rapid now than then?

http://upload.wikimedia.org/wikipedia/en/c/c1/2000_Year_Temperature_Comparison.png


Have noticed that sometimes some will mention that it's the warmest time in last 1000 year. Why do they say 1000 years? Was there a warmer period 1000 years ago. If you think there was indeed a warmer period 1000 year ago, why was it warmer?

The graph above shows 2000 years...

Look, CO2 causes global warming, we have dramatically increased the CO2 , temerature is increasing by an amount that is roughly what you would expect for the amount of CO2 we have added. Are there other factors? Yes, but this is really clear cut- Even bush had to admit global warming is happening and that it is due to human activity...

Are you calling him a liar on this, but not his WMD in Iraq claims?

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