It's 2020 and the glaciers are still there. Do you deny they still exist? Making predictions for things like climate on a year to year basis is a recipe for failure. The scale of the entire system is too large for predictions of such accuracy and do far more harm than good. "Soon" would have been a fine word to use here. Going with 2020 was just asking for a hit in credibility.

Saying "soon" is fodder for deniers as well. My point stands; they'll always deny it up until they're boiling in their own sweat.