First of all, that statement is false. Sea ice routinely vanishes and is replenished according to natural processes including solar, oceanic and atmospheric phenomena. Secondly, using 1979 as a baseline for measurement of Arctic ice is like using the month of March as a baseline for Northern Hemispheric winter temperatures. It marks the end of a regularly-distributed cool period and the beginning of a warmer one. As to Arctic ice, the prior cool period is thought to have begun in the late 1950s (measurements were more observational rather than mechanical back then).
It appears we have now entered a new cool period, but even photographic evidence and computer metrics are ironically denied by those who accuse others of being "Deniers". Finally, James Hansen is considered to be an outlier (to be kind) even by many of his fellow Global Warmists, and an outright liar by many others.
>> It appears we have now entered a new cool period, but even photographic evidence and computer metrics are ironically denied by those who accuse others of being “Deniers”. Finally, James Hansen is considered to be an outlier (to be kind) even by many of his fellow Global Warmists, and an outright liar by many others. <<
Hide the Decline Indeed