Summit Voice: When it comes to global warming nothing is simple -- and that includes proposals to mitigate the effects of heat-trapping greenhouse gases with planetary scale geo-engineering schemes. One of the ideas that`s been floated is to seed the atmosphere with material in order to reflect some of the sun`s incoming heat.
But a recent study by German researchers suggests that it probably won`t work -- and could have unexpected consequences for the global water cycle. In their model, based on an energy...