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Originally Posted by jem
Yes I watched that documentary, its conclusions are somewhat contested thought.
In an earlier post I mentioned what happened on Earth some 150 years ago, Battle of the Little Big Horn and patenting of the telephone were mentioned. Realistically I should have said 200 years ago, my bad. The start of wide spread industrialisation, originating in the UK but then spreading globally.
If you deny that climate change is happening, and is real, then please have an alternative explanation for why the Earth’s mean temperature had risen so much over the past few decades. By definition that is a change in the climate.
OK some may claim that human activities are not responsible, increased solar activity etc have all been cited. Carbon Dioxide is absolutely a ‘greenhouse gas’ (ask Venus what is happening there, it’s a case of a runaway greenhouse effect), I don’t think anyone can deny the physics and chemistry here. So even if you don’t believe that the rise in temperature is entirely due to human activity surely it makes sense to at least not make the situation worse!
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But now we are hearing that increased sunlight hitting the Earth with cleaner air has had a dramatic effect on temperature rise latterly. I don’t personally believe that the incredibly small increase in what is already a tiny proportion of the atmosphere comprising carbon explains the global warming that we are experiencing.
In my opinion, it is several different factors, including deforestation, which is, of course, undeniably our fault.