Backyard gardeners who make their own charcoal soil additives, or biochar, should take care to heat their charcoal to at least 450 degrees Celsius to ensure that water and nutrients get to their plants, according to a new study by Rice University scientists.
Policy makers find CCS too expensive, climate activists call it an excuse for coal and none of us want it applied in our own backyards. But fortunately science also has a way of silently progressing, as we will be needing … Continue reading
Current practice is to grind and burn enormous amounts of limestone, releasing equally enormous amounts of CO2 to the atmosphere. But isn’t there some way to reverse the chemical process and still end up with building material?
An international team of researchers today in Nature explain the importance of dust storms for climate variability, not just for the radiative balance, but also for the Earth’s carbon cycle. For geoengineering minds: iron fertilisation at least seems to have … Continue reading
Breeding crops with deeper (and larger) root systems could help to lower atmospheric CO2 levels, while also making the crops better drought-resistant, Douglas Kell, a Professor of Bioanalytical Science at the University of Manchester says.
Chemists of Lehigh University have engineered new porous materials to adsorb [adhesion of gas to surface] both CO2 and methane from flue gas.
Ocean iron fertilisation, one of the most discussed CDR geoengineering proposals, deliberately tries to stimulate biological activity in the upper ocean. New research shows this in turn affects ecology at the ocean floor too. Let’s just hope sea cucumbers don’t … Continue reading
Next week, Monday till Wednesday, climate experts from IPCC WGI, II & III will get together in Lima to discuss a possible inclusion of geoengineering measures in climate policy. Although intended for participants only, the programme, including abstracts of keynote … Continue reading
But new study advises wetting of either the soil (after mixing) or the char (just before) with large-scale biochar application, in order to keep Eisenia fetida happy.