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Climate models agree that global mean total precipitable water increases by about 7% per 1°C of global warming. New observations allow us to further support this and to narrow the range in global projections of tropospheric humidity in line with formerly constrained projections of global warming.
The anthropogenic component of recent and future warming in the Arctic, under observational constraints
The study aims to constrain the 21st century projections of Arctic winter temperatures. Results show that the recently observed four-fold Arctic amplification of global warming is mostly but not entirely due to a human influence, and will decrease with increasing radiative forcings.