Are we (humans) responsible for the increase of the earths temperature?

[Forsythe]

Air trapped in bubbles in the ice preserve a record of the CO2 content of the air throughout that time (blue area in Figure 3). CO2 concentrations have remained between 280 and 320 ppmv throughout the entire 450,000 period for which there is data and are well correlated with global temperatures. The concern is that today CO2 contents are 370 ppmv and rising. Do ice sheet dynamics cause global temperature changes that result in CO2 fluctuations or do increasing greenhouse gases affect the ice sheet dynamics? This is a key question, and a recent paper addressing this problem (Shackleton, 2000, Science 289) suggests an increase in CO2 triggers ice sheet dynamics.

This information, and much more, leads scientists who study climate change, and such prestigious scientific organisations such as the American Geological Union (AGU) which represents more than 36,000 scientists from 117 countries, to agree that the temperature increase since 1880 is most likely induced by changes to the atmosphere from industrial emissions, principally the greenhouse gas CO2.

http://www.phas.ucalgary.ca/~annlisen/gwposter.html

http://science.howstuffworks.com/global-warming.htm

 

[Forsythe]

http://www.newscientist.com/channel/earth/mg18625065.700

Scientists have underestimated the "cooling" effect of pollutant particles produced by humans - as the air clears, warming may speed up alarmingly

Just dandy...

 

[Toasthead]

Originally posted by: vi_edit
I'll file it under the "we haven't been accurately measuring/tracking things long enough to know yet" category.

exactly!

 

[yllus]

I remember the hysterics about the impending new ice age in the 80s too well to not be skeptical. The data is also not quite there to make a reliable assessment.

As to if we're in the hole further than ever before, 99% of car emissions have been eliminated from modern (last 10 years) cars - so it's not like we're doing nothing about the problem.

 

[bonkers325]

because you touch yourself at night.

there is no real justification for "global warming", we dont have proof that it is caused or expedited by human activity. for all we know, it could be a natural process

 

[Forsythe]

Originally posted by: yllus
I remember the hysterics about the impending new ice age in the 80s too well to not be skeptical. The data is also not quite there to make a reliable assessment.

As to if we're in the hole further than ever before, 99% of car emissions have been eliminated from modern (last 10 years) cars - so it's not like we're doing nothing about the problem.

Originally posted by: Toasthead

Originally posted by: vi_edit
I'll file it under the "we haven't been accurately measuring/tracking things long enough to know yet" category.

exactly!

Originally posted by: bonkers325
because you touch yourself at night.

there is no real justification for "global warming", we dont have proof that it is caused or expedited by human activity. for all we know, it could be a natural process

"Did IQ's just drop all of a sudden while i was away?!"

Did you even read what i wrote?
It clearly shows that we have the data, that the fact that we worried about global cooling in the 80's was correct, we just didn't know about global warming then. And we do have proof it's done by humans, Co2 from volcanoes have different isotope configurations than those from cars and such. And the amount from humans is growing.

We are doing something, yes, but we are still increasing our outlet, we should do more.

 

[Forsythe]

http://www.ucsusa.org/global_environment/global_warming/index.cfm

And if you're gonna try to argument against it, please, use arguments...

 

[Forsythe]

Nobody?
Did i convince everyone?

 

[Forsythe]

Bump for inconvenience.