Citaat:
Oorspronkelijk geplaatst door brother paul
|
Welk stof?
Je bedoelt roet of black carbon (BC)?
Vertel je nu iets nieuws of oud nieuws?
Citaat:
https://en.wikipedia.org/wiki/Black_...Global_warming
“Emissions of black carbon are the second strongest contribution to current global warming, after carbon dioxide emissions”.[112] Calculation of black carbon’s combined climate forcing at 1.0–1.2 W/m², which “is as much as 55% of the CO2 forcing and is larger than the forcing due to the other [GHGs] such as CH4, CFCs, N2O or tropospheric ozone.” [113] Other scientists estimate the total magnitude of black carbon’s forcing between + 0.2 and 1.1 W/m² with varying ranges due to uncertainties. (See Table 1.) This compares with the IPCC’s climate forcing estimates of 1.66 W/m2 for CO2 and 0.48 W/m² for CH4. (See Table 2.)[114] In addition, black carbon forcing is two to three times as effective in raising temperatures in the Northern Hemisphere and the Arctic than equivalent forcing values of CO2.[115]
|