Tag Archives: soil

Right recipe for CDR geoengineering with biochar: mind the temperature!

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.

biochar recipe CDR geoengineering

Rice University biogeochemist Caroline Masiello shows improved biochar

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The wildfire climate feedback, tundra´s case: megatonnes of extra CO2

Globally 2007 was one of the hottest years on record. In the Arctic it led to the thus far smallest sea ice extent. But that’s not the only thing unprecedented that happened in the far north. For the first time … Continue reading →

High mercury levels in soil near coal-fired power plants

We have known for some time that coal-fired power plants emit heavy metals into the air, among which is mercury. Most of these highly toxic particles end up in waterways, through which they sometimes spread as far as to other … Continue reading →

Soils don´t need warming to add another positive climate feedback

We recently reported on a possible negative carbon feedback of forest soils in higher latitudes: when such soils warm, nutrient availability may increase, as would (therefore) biomass production and CO2 uptake. But not all climate feedbacks operate through temperature. It … Continue reading →