A wide array of geoengineering 'solutions' to the catastrophic rise in atmospheric CO2 have been proposed recently: automated cloud ships plying the oceans spraying fine mist into the air; jillions of sparklies put into space; small nukes to mimic volcanic spewage of SO2 to cool the atmosphere; iron powder scattered on the ocean to stimulate carbon-sucking algae to bloom....
Huge, ambitious, expensive, exciting... projects that make engineers drool.
Most of the proposed "solutions" are designed to treat a symptom: global warming.
But what's the disease? And what are the likely consequences of the treatment? And what alternatives are possible?