Bioengineering- Creating Our Own Problems (or self-fulfilling prophecy?)

I just read an article over at CNN.com which talks about 8 "wacky ways" to save the earth from global warming. Among these are:
1. Launch trillions of "frisbee reflectors" into space to reflect the sun's rays back at it.
2. Cover the deserts with white tarps to reflect the sun back.
3. Project "Permanent haze" (what's our forecast Mr. Weatherman? 100% haze, all day every day, with a chance of smog in the late afternoon hours and breathing difficulties by evening)

The last one is my personal favorite: we create MORE clouds by injecting extra sulfur into the air, KINDA like a volcano (because "doing what volcanoes do" has a real humanitarian ring to it)!
By creating more clouds, we reflect more sun back and keep the world nice and cool. Of course, there's the SLIGHT problem that it might dissipate the monsoons in Asia, which means just a tad less food for those non-Americans (or non-Canadians or non-Europeans depending on where your nationalistic spirit lies).
But hey...if China and India won't cooperate by cutting their emissions (read "industrial livelihood") down, then for the sake of humanity we the scientific savior may just have to start spewing sulfur at them.

Here's the thing: The whole premise of global warming is that humans, unaware (voluntarily or involuntarily) of what they were doing have been pumping trillions of scientific units of carbon dioxide into the atmosphere, leading us to the point where we might all just die in the next 1-70 years (actually most of us WILL die in the next 1-70 years, but that's why we have babies). Humanity has therefore accidentally engineered its own damnation by scientific mistakes.
Now the question is this: do we REALLY want those same humans, albeit so penitent now, to start chemically assaulting our atmosphere with new things; do we really want to start covering deserts with tarps and launching "space frisbees" (UFO's?) to keep the sun off our dirt? Remember, these are the same enthusiasts who convinced us years ago that paper bags were irresponsible because they cost too many trees so we should use plastic...only to decide later that plastic was deadly to all of us so we must use paper (guess those trees lost their publicity). These are, notably, the same scientists who as recently as 30 years ago (in the grand scheme of things, not a long period of time) were absolutely convinced based on data in their time that the earth WAS COOLING and we WOULD DIE from it.
Maybe if we got all the world-famous chess players together and taught them all this science and applied their ability to think 10, 20, 30 steps ahead so we could maybe get an idea of what all these things might do to our plant and animal life- maybe then I'd be OK with assaulting a largely interdependent and vastly-complex-beyond-mere-human-comprehension planet earth with various interfering schemes.
Or maybe we should stop trying to "solve" the world and just go on living, not radically, but responsibly.