The whole article is a big question mark, we're not sure even if there
is a reduction in CO2 absorption and further we don't know what's
causing it.

Roger wrote: "Of the new carbon released to the atmosphere from fossil fuel
combustion and deforestation, some remains in the atmosphere, while
some is taken up into the land biosphere (in places other than those
which are being cut)"

But in the other places only the some percent of CO2 can be taken up into
the land biosphere. This part which have the natural proportion with SO2 and
fly ash. If we reduce SO2 (desulphurisation) and fly ash (electrofilters)
the reduction in CO2 absorption is the natural consequence.
S*