You are disputing the studies?
well there's no doubt way more studies will disagree and say global warming is real.
i have no great knowledge of science. but from my understanding a scientist will come up with a theory and then test it and see if results back up said theory. with global warming or the hole in the ozone layer etc, testing the theory in real life will take 50 or 100 years or however long.
so regardless of how certain these scientists say they are about global warming and how easily we can reverse it just by cutting greenhouse gas emissions no one will really know until it's tested and even then there's so many other variables involved that even if climate trends do change, it would still probably be very difficult to say with certainty why.
if scientists didn't have to apply a theory for curing cancer in the real world . they'd probably have cured that years ago too.