Britain's greenhouse gas (GHG) emissions fell by 3 percent in 2018, due largely to lower coal-fired power generation, marking a sixth consecutive yearly decline, preliminary government data showed on Thursday. Output of heat-trapping gases in Britain, Europe's second-largest emitter behind Germany, fell to 449 million tonnes of carbon dioxide equivalent (CO2e), data from the Department for Business, Energy and Industrial Strategy showed. Emissions of carbon dioxide (CO2), the main greenhouse gas blamed for climate change, fell by 2 percent to 364 million tonnes.