Nice graph....seems to me the global cooling is caused by a lack of sunspots...
Last time this happened there was a mini ice age from 1350 to 1750....
Could it be that the Sun's magnetic field is in decline....so less sunspots are produced...
90 posted on 12/31/2014 8:13:18 PM PST by spokeshave
(He has erected a multitude of New Offices, and sent hither swarms of Officers to harass our people,)