Which cryptocurrencies generate the most eco-friendly cryptocurrencies?

In the realm of cryptocurrency, the question of environmental impact is becoming increasingly pertinent. With the mining process often associated with significant energy consumption, it begs the question: which cryptocurrencies generate the most eco-friendly alternatives? The search for sustainable digital currencies that minimize the carbon footprint and environmental degradation is paramount. Are there specific cryptocurrencies that utilize renewable energy sources or innovative consensus mechanisms to mitigate their environmental impact? Moreover, how do these green cryptocurrencies stack up against traditional cryptocurrencies in terms of scalability, transaction speed, and overall network efficiency? Unraveling this mystery is crucial for investors, regulators, and environmental advocates alike.