Given sharp increase in ecological problems, focus of environmental discussions is on carbon neutrality and sustainable development. This study explores how environmental taxes, investment in renewable energy, and reliance on natural resources and sustainable technologies affect progress of sustainable development. This research established for OECD analysis from 1994 to 2024 by using a novel intelligent Bayes topology based on structure learning shows that environmental taxes, renewable energy investment, climate mitigation technologies and economic progress will ensure environmental sustainability of the OECD economies. With increase of external factors of climate change, the financial sector and reliance on natural resources are undermining ecological sustainability. In addition, we are conducting economic classification on OECD dataset to identify the differences in experience between the G7 and other OECD economies. At the conclusion of our analysis, we put forward strong suggestions on environmental policies that enhance sustainability.