Environmental　recovery　is　one　of　the　critical　challenges　for　developed　and　developing　economies　worldwide.　In　this　regard,　developed　and　developing　economies　are　constructing　and　implementing　policies　to　achieve　envi-ronmental　sustainability　without　affecting　economic　progress　-　termed　sustainable　development.　This　study　analyzes　the　influence　of　various　financial,　economic,　technological,　and　greener　energy　variables　on　the　envi-ronmental　quality　of　developed　(G7)　and　emerging　(E7)　economies.　The　current　study　employs　panel　data　from　1990　to　2020　and　uses　robust　panel　estimation　approaches　for　empirical　analysis.　Specifically,　the　diagnostic　test　asserted　that　slope　coefficients　are　heterogenous　and　cross-section　dependence　exists　in　both　panels.　The　coin-tegration　association　exists　between　the　variables.　Employing　the　System　Generalized　Method　of　Moment　and　panel　Quantile　regression,　the　empirical　results　reveal　that　financial　globalization　and　renewable　energy　nega-tively　influence　the　ecological　footprints　in　both　regions.　Financial　globalization　(-0.043)　is　more　aggressive　in　G7,　and　renewable　energy　(-0.258)　significantly　impacts　E7　economies.　In　contrast,　economic　growth　is　harmful　to　environmental　sustainability　in　both　G7　and　E7.　Medium　and　high　technologies　(MHTI)　and　urbanization　significantly　affect　ecological　footprints　in　both　panels.　Urbanization　growth　harms　developed　regions＇　envi-ronment　and　benefits　emerging　economies.