Dean Thompson wrote:There are many valid and good points that people have made but if geoengineering continues they will all be pointless.
John Elliott wrote:Massive earthworks may be necessary to deal with the drying out of already dry areas, but I would put them in the category of adaptation, not strategies to reverse climate change.
The real way to reverse climate change is with biochar. The discovery of charcoal as an excellent soil amendment has come rather late in the history of science and technology. Had it come in the 1790s instead of the 1990s, and plowing charcoal under was established agricultural practice, we would not be in the predicament we are in. We could still pull gigatons of carbon out of the deep Earth to burn if we were applying the same number of gigatons to our cropland. And were we doing that, there would be less need for fertilizer and pesticides, two significant uses of fossil fuel inputs.
Is it too late to start burying biochar? Maybe, maybe not. On a personal note, I am going to have to stay home a lot more and cook more batches of biochar before I am a net carbon sequesterer and not a net carbon releaser.