BECCS CCS COVID-19 D EU climate/energy policy European Union Fit for 55 GEM-E3-FIT Greek EV mobility 2030 Green Deal History of engineering & technology NEWAGE TIMES PanEU Technology: general issues abatement cost agent-based modelling biomass border carbon adjustment burden sharing business models carbon disclosure carbon leakage climate neutrality climate scenarios combined gas-steam cycles cost management economic analysis economic recovery efficiency effort sharing regulation