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Originally Posted by OLD BOY
We've certainly been brainwashed into thinking so, Den. We all just need to bear in mind that the scientists have not proved this theory of theirs yet.
For all we know, it might be that with the cleaner air we are breathing following the industrial revolution, more sunlight is getting through, allowing the recovery from the mini-ice age to resume.
By the way, the mini-ice age was not our fault - it was absolutely natural. So why is 'global warming' our fault?
More questions than answers, as usual.
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Absolutely. Unless we had another Earth to test, we have to work with models and proxies and the big issue is that nothing like this has happened before. Sure, there have been climate changes in the past but the evidence of causes of these changes are generally not related to carbon emissions but rather changes in solar radiation.
CO2 levels do cause a greenhouse effect, that is basic physics but I guess the question is do the amounts of atmospheric CO2 contribute to warming and, if yes, how much is needed to have an effect? There is also a good correlation between CO2 levels and temperatures but correlation does not always indicate causation. There are studies using new information sciences which do show a one way linkage -
https://www.nature.com/articles/srep21691 but it can be argued that this is just another type of statistics...
I guess the big questions are;
- Does CO2 cause a greenhouse effect in general?
- Does atmospheric CO2 cause a greenhouse effect in the atmosphere and if the answer to above is yes and this is no, why?
- How much CO2 is needed to cause an effect?
- If CO2 is not the cause of climate change, where is the heat from a greenhouse effect going?
- What else could cause a rise in global temperatures?