This study examines the joint effects of Twitter- based economic uncertainty (TEU) and geopolitical risk (GPR) on the returns of selected clean (energy-efficient) cryptocurrencies. We consider seven environmentally friendly cryptocurrencies over the period January 2018 to April 2023. Using a combination of descriptive statistics, quantile regression, and wavelet coherence analysis, we investigate how changes in the Twitter-based Uncertainty Index (TEU-USA) and the Geopolitical Risk Index (GPRD) influence cryptocurrency returns. Descriptive analysis reveals that these cryptocurrencies have near-zero average returns but differ markedly in volatility and tail risk. The quantile regression results indicate that higher geopolitical risk is associated with significant effects on certain cryptocurrencies during extreme market conditions, whereas Twitter-based uncertainty generally shows negligible impact. Wavelet coherence analysis further shows intermittent short-term coherence and moderate long- term correlation between GPRD and cryptocurrency returns, while the TEU-USA index exhibits weak and sporadic influence. These findings suggest that clean cryptocurrencies exhibit relative resilience to social-media-driven economic sentiment but remain sensitive to major geopolitical events. The results offer valuable insights for investors and policymakers concerned with the risk and diversification properties of green digital assets.