Global warming, effects

Emission of CO2 bio was considered as neutral and did not count for estimating the global warming effect. Therefore, two emission factors are considered for the combustion of 1 MJ of fuel ... 

In the discussion of ecotoxicity the perhalogenated chlorofluorocarbons (CFCs), hydrogen-containing hydrochlorofluorocarbons (HCFCs) and the chlorine-free hydrofluorocarbons (HCFs) have been for several years in the headlines (the depletion of the ozone layer in the stratosphere, the greenhouse or global warming effects in the troposphere).75... 

Conversion factors for global warming potential (GWP) are expressed in terms of C02 equivalency (kg C02 equivalent), as given in Table 4. Using GWP values, emissions to the air of various substances can be converted to an equivalent C02 global-warming effect by means of the following formula ... 

Mendelsohn and Rosenberg (1994) asked the following questions regarding global-warming effects on ecological and water resources ... 

In recent years, various countermeasures against global warming effects are discussed and are implemented in all the countries of the world. On the restriction... 

From the other side, increasing nitrogen deposition is also a problem of environmental concern in many areas of Europe, North America and Asia (see Chapters 8 and 10). Thus this increase in CO2 andN in the atmosphere could lead to various global environmental problems, both negative (global warming effect and acidification) and positive (additional sequestration of both elements in plant biomass). 

Most of these pose human health concerns and many contribute to the acid rain problem and global warming effect. 

After the invention of a novel membrane electrolyte, the output power density of a PEFC has improved, and fuel cells can be applied to electric vehicles, stationary power sources, and mobile applications such as laptop computers and cellular phones. The high efficiency of the energy conversion of stationary fuel cells would be an important feature considering the limited resources of fossil fuels and their global warming effect. 

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