1. The sustainable potential of efficient air-transportation industry and green innovation in realising environmental sustainability in G7 countries;Chen;Econ. Res.-Ekonomska Istrazivanja,2021
2. The climate change challenge;Ellis;Rebuilding Britain,2017
3. Nationally Determined Contributions (NDCs) | UNFCCC. Unfcc,2020
4. U.S. Is Committed to Reducing its Emissions by 50-52 Percent below 2005 Levels by 2030 - Climate Scorecard;Holman,2021