Sentences with phrase «dips at higher concentrations»

Not exact matches

The resulting record shows a CO2 concentration of about 270 ppmv at 11,300 yr BP, a sharp increase to about 330 ppmv at 11,260 yr BP, and (with the exception of a dip to 300 ppmv at about 11 kyr BP) a rather constant CO2 concentration at the high level of about 330 ppmv over the next 500 years.