Do you have a crystal ball? You have no idea what Monbiot has based his opinions on. Let alone any debunked science. Why don't you post some instead of talking about it? Are you capable? I'll be giving you some references in one moment.
So give us one then. Specifically, and tell us what you think it debunks.
Bull plop. We have a very good idea. Attribution studies time and again, have consistently found the anthropogenic signal. Further, there is no competing explanation that can satisfy the points I gave to you earlier, which I note you did not respond to.
So here's some references for you. See if you can debunk them, or give us a source that has specifically debunked them:
http://www.philosophicalturn.net/CMI/Environment/Nature_Attributing_Anthropogenic_Climate_Change.pdf
http://www.geog.ox.ac.uk/~mnew/teaching/Online_Articles/stott_regional_attribution_GRL_2003.pdf
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From the Cover: Human-modified temperatures induce species changes: Joint attribution
http://www.cccma.ec.gc.ca/papers/ngillett/PDFS/matthewsetal2004.pdf
http://www.geos.ed.ac.uk/geography/homes/ghegerl/hegerletal97.pdf
These are all attribution studies. You need to perform these studies to determine causality. Essentially they are experiments.
No, that is what the literature says. This is what the scientists have found. Your attempts to dismiss the many works by thousands of scientists is what gave rise to the word "denier" in all this mess. You deny what has been found by science.
Is it faith? Do you have anything besides faith which you can use to dismiss these studies?
If so, lets hear it.
The floor is yours.