I blame myself

This intriguing title is due for an October release... if we last that long...

Plait, Philip. Death from the Skies!: These Are the Ways the World Will End.... Viking. Oct. 2008. c.324p. illus. index.

Plait (Bad Astronomy) runs the popular blog BadAstronomy.com and is a former astronomy professor. Here, he describes the myriad ways that astronomical events could end life on Earth. These include comet and asteroid impacts, massive solar flares, supernova explosions, gamma-ray bursts, black holes, diseases of extraterrestrial origin, the eventual death of the sun, and the wobbly orbit of the sun around our galaxy that could expose us to cosmic rays.

Solar cooling obviously caused by humans

I blame our emissions of bulls#i+...

DailyTech.com: According to data from Mount Wilson Observatory, UCLA, more than an entire month has passed without a spot. The last time such an event occurred was June of 1913. Sunspot data has been collected since 1749.

When the sun is active, it's not uncommon to see sunspot numbers of 100 or more in a single month. Every 11 years, activity slows, and numbers briefly drop to near-zero. Normally sunspots return very quickly, as a new cycle begins.

But this year -- which corresponds to the start of Solar Cycle 24 -- has been extraordinarily long and quiet, with the first seven months averaging a sunspot number of only 3. August followed with none at all. The astonishing rapid drop of the past year has defied predictions, and caught nearly all astronomers by surprise.