Yes. The map is sensationalist trash. Not to say that global warming won't impact the lakes: The far more likely outcome is depletion, as water diversions considered unthinkable become politically feasible, both within and without the basin. A map like that might as well show the Colorado River shores expanding with sea rise, it would make as much sense (for non-Americans, the Colorado is so heavily diverted to southwestern farms and municipalities that its riverbed is dry, or a trickle, most of the year).