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Originally Posted by Hyperchiller  I've got a few words to this.
CORRELATION DOES NOT IMPLY CAUSATION.
Just because the Earth seems to be warming by scientific reports does not mean us humans are causing this warming. I've done a bit of research into this and found that a few scientists found that not only is the Earth increasing in temperature, but other planets in the Solar System are increasing in temperature. I don't have any sources of this on hand so do your own research.
How the hell do you explain that?
I think it is possible that the warming is caused by factors that are external to the Earth. Ok so the scientists are looking at factors on this planet. What about variables that are related to outer space? Are we actually entering into a special part of the Milky Way that is increasing the energy of our Solar System? What is going on outside of Earth?
I agree that the Earth is warming. I also agree that humans have some influence. But are we having a large influence? IT IS possible that we are not. |
I'm an astrophysicist (working on a doctorate in star formation now) and I'm pretty sure that's unlikely to be the case. It's true that the sun works in cycles but the fluctuations in global temperatures measured (for example) in ice cores over the course of the earth's "life" are small compared to what we have seen over the last 50 or so years. 50 years is very short in an astronomical sense, less than the blinking of an eye. The universe is 1000000000 years old (ish) so 50 years is a fraction of a fraction of a fraction of a percent. We are talking a massive coincidence and thats shaky ground.
Venus heats up because it has greenhouse gasses. It is closer to the sun so hotter on the surface and means that many lighter gasses evaporate off the surface. The heat makes volcanoes more active and the surface chemistry is different. The net result is more greenhouse gasses are emitted but cannot be fixed in rocks in the way that they can be on earth. Earth will end up like Venus if greenhouse gasses are not taken under control, that is a fact. Not in my lifetime but it would be inevitable. I've not seen any research about any other planet temperatures.
Either way, if humans are the cause or not, we are still pumping out plenty of greenhouse gasses and should cut back on them. They aren't good for the world in the long run, even if they aren't the cause of the short term spike in global temperature we are seeing at the moment.
By the way, if you want to make scientific claims, you really should present a source to back them up. Not being snotty, but it looks like you just made it up if you don't.