How much of global warming is caused by humans?

Answer 1

It's too hard of a question to answer easily. Those who are on the global warming band wagon will tell you the sky is falling. I've not found an argument yet without holes in it, or one that completely addresses the entire argument. The other problem is that scientific instruments have really come into their own in the last couple of decades. Thus, even though we may have temperature data from 200 years ago, how does the accuracy of an older thermometer compare with one of today? Couple that with the fact that the earth is 6+ billion years old, and we are looking at the problem from an infinitely small view. Lazy science tells us that in the last few decades, temperatures have gone up. Plug those data into a forward regression model, and it will tell you that the earth will be too hot in 60 years.

Think of it like looking at a tide chart. If you only pick the up slope of a tide graph, and then predict what the tide will do based on that, you are going to come up with a wrong answer and be just one more victim of slothful induction.

BY THE WAY, just because someone quotes someone else's statement, that doesn't make it true. 60% of global warming is caused by humans? Where does that figure originate, and how was it quantified? What accounts for the other 40%?

Answer 2

At least 60% of global warming is caused by humans. The world is the most populous it's ever been. We have more cattle ranches now than in all of history. We have more cars on the road in the US than people in Ecuador. We kill more forest in one year than the whole Roman Empire did in 100. Should I keep going?

Answer 3

"At least 60% of global warming is caused by humans." - the Gimp

I would like to see the study where that has been quantified. I have yet to see the study which gives a number to answer this question.

Answer 4

Global warming is hype.
CO2 the big bad problem has been taken care by plants and photosynthesis.
Methane they say it is huge but I cant find it. Methane is lighter than air so it goes very high in the atmosphere , but how can u measure it ??? And it appears to of disappeared.