...climate change; • global mean surface air temperature has increased by 0.3 to 0.6°C over the last l00 years; • the size of this warming is broadly consistent...decades. Although this phenomenon was recognized in the l990 report, some progress has been made in quantifying its effect. The Global Warming Potential (GWP)...

...to our incomplete understanding; global mean surface air temperature has increased by 0.3' to 0.6'C over the last 100 years; the size of this warming...from sulphur emissions may have offset a significant pan of the greenhouse warming in the Northern Hemisphere (NH) during the past several decades. Although...

...is believed to have approximately offset the radiative forcing contribution of chlorofluorocarbons (globallyaveraged) over the last decade or so. •...the greenhouse warming in the northern hemisphere during the past several decades. Although this phenomenon was recognized in the 1990 report, some progress...

...number of significant new findings and conclusions which we summarize as follows: Gases and Aerosols • The cooling effect of aerosols resulting from sulphur...may have offset a significant part of the greenhouse wanning in the northern hemisphere during the past several decades. Although this phenomenon was recognized...

...believed to be comparable in magnitude to the radiative forcing contribution of chlorofluorocarbons (CPCs) (globally-averaged) over the last decade or so. • The cooling effect of aerosols rf ' resulting from sulphur emissions may have offset a significant part of the greenhouse warming...

...believed to be comparable in magnitude to the radiative forcing contribution of duorofluorocarbons (CTCs) (globally-averaged) over the last decade or so. •...some progress has been made In quantifying its effect TV Ktmlifk Jefimtim of 'tenrtf a «n uttam pMrtkte or colltftvMi of pertktn. tvl the irorg hoi fecone...

...chlorofluorocarbons (CFCs) (globally-averaged) over the last decade or so. • The cooling effect of aerosols W resulting from sulphur emissions may have offset a...progress has been made in quantifying its effect. The scientific definition of 'nemo!' is an airborne particle or collection of particles, but the word has...

...forcing contribution of chlorofluorocarbons (CFCs) (globally-averaged) over the last decade or so. 2. The cooling effect of aerosols (+) resulting from...the greenhouse warming in the Northern Hemisphere during the past several decades. 3. The Global Warming Potential (GWP) continues to be a useful concept...

...forcing contribution of chlorofluorocarbons (CFCs) (globally-averaged) over the last decade or so. 2. The cooling effect of aerosols (+) resulting from...the greenhouse warming in the Northern Hemisphere during the past several decades. 3. The Global Warming Potential (GWP) continues to be a useful concept...

...of the greenhouse warming caused by CFCS. In addition, cooling by tropospheric aerosols from sulfur emissions may have offset a significant part of the greenhouse warming in the northern hemisphere during the past several decades. Figure B-3-Carbon Dioxide Concentrations in the Atmosphere 380 360...