When in doubt, don't emit it

You'd think by now we would have figured it out.

Human beings pumping lots of anything into the atmosphere? Usually a bad idea. Acid rain, thinning ozone layer, global warming--we don't have a great track record.

So it's not too surprising that this idea of counteracting global warming by injecting sulfur in the atmosphere is getting the kibosh. (AP)

Also a bad idea? Pumping lots of anything into the ocean. See, for example, the dead-in-the-water plan to purposely spawn ocean plankton blooms to sequester carbon. (Fortune)