Research Information System
GONDWANA RESEARCH, vol.141, pp.149-163, 2025 (SCI-Expanded)
This study examines the complex relationship between environmental degradation, energy-related 34 uncertainty (EUI), climate policy uncertainty (CPU), and energy consumption diversification (ECD) in 35 the United States from January 2001 to September 2022. Employing novel and robust econometric 36 methods, including the Bootstrap ARDL Bounds test with smooth and sharp structural breaks, the Toda37 Yamamoto causality test with a Fourier function, and partial wavelet coherency analysis, the study 38 reveals a surprising negative relationship between both EUI and CPU with CO2 emissions which 39 suggests that uncertainties surrounding energy and climate policies may incentivize actors to adopt 40 cleaner technologies and prioritize emission reduction strategies. However, the study also identifies a 41 positive relationship between ECD and CO2 emissions, highlighting the need for strategic diversification 42 prioritizing renewable and low-carbon sources. These findings emphasize the critical role of clear, 43 consistent, and sustained climate policies in fostering clean energy investment and mitigating 44 environmental degradation.