A new study confirms that snowfall in Antarctica will increase significantly as the planet warms, offsetting future sea level rise from other sources – but the effect will not be nearly as strong as many scientists previously anticipated because of other, physical processes.That means that many computer models may be underestimating the amount and rate of sea level rise if they had projected more significant impact from Antarctic snow.Results of the study, which was funded by the National Science Foundation, were reported this week in the journal Nature Climate Change.