Elizabeth
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Yes, it is real.
But before I get into it, let's deal with Kano's graph once and for all because it annoys me. I've attached my own graph to this answer and what it shows is warming over a period of 24 hours. Now the first thing you'll notice is that my y-axis scale is dodgy - why am I plotting from 0 to 160 F in the graph if the temperatures are all around about 100 F? The only reason I'd make that choice is to try to visually minimise the changes that are occurring in the data so you get the impression the temperatures aren't really rising all that much.
Of course you might, as Kano is doing, then argue that the changes are 'insignificant'. But how are you deciding that they are 'insignificant'? Is it simply on the basis that the change or rise in temperature is small? In my graph, the variation in temperature is about 2% of the mean value. You might argue that the rise in temperature is therefore 'insignificant' - but if they were human body temperature they'd show the onset of a fever. So please, Kano, stop peddling that crappy graph as 'proof' of insignificance when it is simply 'proof' of your guess of the significance.
Now, as for global warming, we go around digging fossil fuels out of the ground and burning them with oxygen. This is a fact. When we do that we produce additional CO2 that would not have been present in the atmosphere had we not burnt the fuels. This is also a fact.
CO2 is a greenhouse gas and if we increase its concentration in the atmosphere then the laws of physics tell us the planet has to warm. This is pretty much also fact, unless 150 years of spectroscopy of CO2 is wrong, and conservation of energy is wrong.
So the problem, for me, is that global warming makes physical sense. It is exactly what we'd expect to be happening given what we're doing. And for all the whinging by skeptics, they haven't shown which part of physics is wrong. They haven't shown why you can pump CO2 and *not* have the planet warm.
Connor
It's obviously real. Otherwise we would have had snow right now. But no, everyone wants to keep screwing up this planet.
smilingfox
Yes, because the glaciers are melting.
Anonymous
Yes I do. It is very normal temperature for the season one day, than it jumps like 10 degrees over night. Water levels change drastically over night. Something is really changing our climate. Wildlife is becoming unpredictable in population.
Debbie
Yeah