No. It isn't the heat.

When the sun isn't spitting flares at us from the sunspots, the Earth's magnetic field weakens. It needs that bombardment in order to strengthen. When it is weak, then cosmic rays can push into troposphere (?) and this leads to increased cloud cover.

Larger coronal holes lead to larger cosmic streams, which is what we are seeing. This also leads to more earthspots (ie hurricanes and quakes).

That's what the alt-science people have been trying to get out to the main stream scientists.