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A new study from scientists at the University of Miami Rosenstiel School of Marine and Atmospheric Science and colleagues confirms rising levels of water vapor in the upper troposphere — a key amplifier of global warming — will intensify climate change impacts over the next decades. The new study is the first to show that increased water vapor concentrations in the atmosphere are a direct result of human activities.

“The study is the first to confirm that human activities have increased water vapor in the upper troposphere”, said Brian Soden, professor of atmospheric sciences at the UM Rosenstiel School and co-author of the study. (1)

But WHY is water vapor a “KEY AMPLIFIER OF GLOBAL WARMING”?
Is that a fact?
Or a conclusion based on assumptions?

Search on your own.
Question what seems obvious.
Even if someone tells you 1+1=2 ask him WHY?
It is the simple things which hide the greatest traps.

Hint:See Climate models, IPCC, assumptions: Why “climate change” is in our mind. for more on what is “right” and “wrong” in the climate models.

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