Since precise measurements began, mean atmospheric CO2 level has risen for 58 consecutive years, with no detectable acceleration of sea-level rise. Clearly, human-caused warming doesn't significantly increase the rate of sea-level rise.
Dutton and Mann also suppose the Antarctic Ice Sheet simply must lose ice in a warming climate, because of “basic physics.” That's also nonsense. Most of Antarctica averages far below freezing, so a few degrees of warming won’t melt it.
Melting decreases ice sheet mass balance, while snowfall adds to it, offsetting sea-level rise. Multiple studies confirm accumulating snow on ice sheets increases as the climate warms, the result of downwind “ocean effect snowfall.”
Compelling evidence shows global warming from fossil fuel use is modest and benign, and higher CO2 levels measurably benefit agriculture and natural ecosystems, outweighing hypothetical harms.
DavidBurton SeaLevel.info Cary, NC M: 919-244-3316 Thomas Wysmuller, Meteorologist, NASA (retired) Ogunquit, ME Prof. William Happer (Emeritus) PrincetonUniversity Princeton, NJ
Here's a reference to the 58 consecutive annual increases in mean CO2 level (59 years of measurements):
Note that inAntarcticathe ice mass trend is so flat that studies disagree about whether it is increasing or decreasing. Here's a NASA paper reporting the conclusion that Antarctica is gaining ice: http://sealevel.info/zwally2015.pdf Other studies have reached the opposite conclusion, but they all agree that the trend, whether up or down, is so slight that it is affecting global sea-level by less than three inches per century.
There are three factors reducing ice mass of the Antarctic ice sheet (melting, sublimation & glacier calving), and only one factor increasing it (snowfall). Since the net ice mass trend is very close to flat, that means the effect of snowfall is approximately equal to the sum of the other three factors.
Did you know that Scientific American once called anthropogenic CO2 "the precious air fertilizer," because it is so beneficial to agriculture? They really did (nearly a century ago):