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Does environmental diplomacy reduce CO2 emissions? A panel group means analysis.

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Environmental diplomacy shows short-term CO2 emission reductions in developing nations. However, long-term analysis reveals increased emissions, suggesting treaties yield limited climate change impact.

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Area of Science:

  • Environmental Science
  • International Relations
  • Climate Policy

Background:

  • Environmental diplomacy is a key aspect of international cooperation on climate change.
  • The effectiveness of environmental treaties in curbing carbon dioxide (CO2) emissions remains a subject of debate.
  • Understanding the real-world impact of these agreements is crucial for effective climate action.

Purpose of the Study:

  • To investigate the causal relationship between environmental diplomacy and national carbon emission levels.
  • To determine whether signing environmental treaties leads to a reduction in CO2 emissions.
  • To analyze the short-term and long-term effects of environmental diplomacy on emissions across different country groups.

Main Methods:

  • Utilized panel data from 76 developed and developing countries over 35 years.
  • Employed common correlated effects mean group (CCEMG) models for robust estimation.
  • Applied Fully Modified Ordinary Least Squares (FMOLS) for long-run dynamic analysis.

Main Results:

  • Environmental diplomacy was found to reduce CO2 emissions in developing countries in the short run.
  • Long-run estimates using FMOLS indicated that both developed and developing countries increased CO2 emissions with more treaties signed.
  • Evidence suggests a lack of adherence to treaty requirements over the long term.

Conclusions:

  • The signing of environmental treaties may represent international diplomacy with limited tangible results on climate change mitigation.
  • There is a need for countries to prioritize fulfilling treaty obligations over the mere act of signing agreements.
  • Effective climate change mitigation requires genuine commitment and action beyond diplomatic gestures.