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[[Image:Ch4 rotterdam-142710 1920.jpg|thumb|centre|500px ]] This chapter of the City statistics manual provides the definitions that should be used for compiling data at city and functional urban area level in the following sub-domains: Labour Market ...

Manure management and manure applications have an impact on agricultural emissions of methane (CH4) and nitrous oxides (N2O), two potent greenhouse gases. The main factors affecting CH4 emissions are the amount of manure produced and the proportion ...

1&ter_valid=0 Natural gas] consists mainly of methane (CH4). It is taken from natural underground reserves. *Other gas consists of [http://ec.europa.eu/eurostat/ramon/nomenclatures/index.cfm?TargetUrl=DSP_GLOSSARY_NOM_DTL_VIEW&StrNom=CODED2&StrLanguageCode ...