environmental degradation CA-Markov 1 CO2 emissions 1 CO2 emissions prediction 1 Contemporary Yellow River Delta 1 DEA-based Malmquist productivity index 1 Detroit 1 EKC estimation 1 Ecosystem service value 1 Environmental Kunzets Curve 1 Environmental Kuznets Curve 1 Environmental protection 1 Europe 1 European Union 1 G7 countries 1 Ghana 1 Green GDP 1 Gross Domestic Product 1 Groundwater 1 History of engineering & technology 1 Institutions 1 Land Use 1 Land use change 1 Lankao county 1 Managed Aquifer 1 MicroLEIS DSS 1 Nitrate Vulnerable Zones 1 Penman–Monteith equation 1 Recharge 1 SWAT 1