"'shooting pollution particles into the upper atmosphere'. WTF does that mean? Aren’t we trying to cut pollution?"
It's been known that when the Industrial Revolution was in full swing, the smoke from the industrial output actually cooled the earth's temperature. Which is the great paradox of the whole Global Warming conspiracy: it will take pollution to actually cool the earth.
Of course, this all assumes that man-made global warming actually exists. The IPCC had to admit that since 1998, global temperatures have either plateaued or dropped. So, in effect, what His Excellency Barack (Idi Amin) Husseim (Mother Nature) Obama intends to do is to further cool an already cooling earth because it is "warming".
Periods of global cooling, as evidenced by the events od the Dark Ages, have led to worldwide famine due to food shortages. That's because not a hell of a lot of stuff grows when there's snow on the ground, but a LOT of food crops will grow if it's 100 degrees F, so long as there is enough percipitation.
The possibility exists that by screwing around with the atmosphere, when nothing actually appears to be wrong, may actually cause a global catastrophy.