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The variable of environmental taxes showed a negative externality between taxation and carbon dioxide emissions, reflecting that taxation stimulated an increase in carbon dioxide emissions. The econometric results also indicate that renewable energy and trade aim to decrease pollution emissions, improving environmental degradation.<\/jats:p>","DOI":"10.3390\/en18102543","type":"journal-article","created":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T08:44:58Z","timestamp":1747212298000},"page":"2543","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["The Impact of Environmental Taxes and Renewable Energy on Carbon Dioxide Emissions in OECD Countries"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7602-2615","authenticated-orcid":false,"given":"Nuno Carlos","family":"Leit\u00e3o","sequence":"first","affiliation":[{"name":"School of Management and Technology, Santar\u00e9m Polytechnic University, Complexo Andaluz, Apartado 295, 2001-904 Santar\u00e9m, Portugal"},{"name":"Center for Advanced Studies in Management and Economics (CEFAGE), University of \u00c9vora, 7000-809 \u00c9vora, Portugal"},{"name":"Center for African and Development Studies, Lisbon University, 1200-781 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1195","DOI":"10.3846\/tede.2023.18871","article-title":"The Impacts of Energy Supply and Environmental Taxation on Carbon Intensity","volume":"29","author":"Torok","year":"2023","journal-title":"Technol. 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