Explore the environmental impact of cryptocurrency mining and potential solutions in this Web Summit conference talk. Delve into the energy-intensive nature of crypto mining and its scrutiny. Learn about alternative consensus mechanisms like proof of stake, advocated by Tezos co-founder Kathleen Breitman, as a less power-hungry option compared to Bitcoin's proof of work. Discover how renewable energy could be utilized in mining, as proposed by Bitgreen CEO Adam Carver. Gain insights from industry experts Kathleen Breitman, Adam Carver, and Laura Wallendal as they discuss the future of sustainable cryptocurrency with Fortune's senior writer and tech editor Robert Hackett.