Sedimentary rocks on the banks of the Mackenzie River, Canada, a major river basin where rock weathering is a CO2 source. Image credit: Robert Hilton. Rocks contain an enormous store of carbon in the ...

Hebrew University experts continue in footsteps of researcher who built special reactor that flushes CO2, seawater through stone columns, but science yet to be tested on large scale ...

image: During the Ordovician period, the concentration of CO2 in the earth's atmosphere was about eight times higher than today. It has been hard to explain why the climate cooled and why the ...