Krynn72
The Freeman
- Joined
- May 16, 2004
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Carbon dioxide has been known to absorb infrared radiation for a very long time. Infrared spectrometers are pretty common lab instruments. All C=O double bonds absorb strongly. The science of increased CO2 levels causing increased trapping of heat is pretty solid. One might debate whether things like cloud formation offset the increased heating (research published last year using climate models says no), but if there is CO2 in the atmosphere and infrared light passing through it, it IS undeniably absorbing and re-radiating the heat. While CO2 is present at small levels, the increase in CO2 over the past decade is significant enough that profs actually have to revise their homework problems every few years to update the CO2 concentration.
If you want an example of the effect of carbon dioxide on climate on a planet-wide scale, look at Venus. Extreme case, but carbon dioxide has clearly royally screwed up Venus. If you need an example closer to home, look into how Earth switched over from "Snowball Earth" to the Cambrian explosion. Granted, CO2 levels leading up to the Cambrian period were 350 times higher than they are today, but that was to warm from completely-frozen-over temperatures to massive-explosion-of-life temperatures. In our case, people are concerned about smaller 1 to 2 deg Celsius warmings and other climatic changes because crop growing periods, the water cycle - which has a significant effect on crop growing, and animal life cycles (although you don't really seem to care about those) can be sensitive to small climate disruptions. Insect populations are particularly sensitive to temperature in that larval hatching and insect lifespans are often controlled by temperature. Even if you don't care about insects themselves, you should consider insect-crop relations.
Also, while I agree that individual actions are miniscule on the scale of the carbon output of everyone in the world, we need to start somewhere. This is why overarching policies would have to be implemented to make significant change, which I think was the point of this thread in the first place.
I'm not sure what you mean by "the other (non carbon emission related) effects of an individual action on the global climate," so I can't respond to that.
Jverne, be more like this guy and people will take you seriously. He actually has evidence to back up his points and makes it clear what he is disputing.