“Blockchain technology holds immense promise that may make our personal information more secure and economy more efficient,” the letters said. “However, the energy consumption and hardware required to support [Proof-of-Work]-based cryptocurrencies may, in some instances, produce severe externalities in the form of harmful emissions and excess electronic waste (e-waste).”
House Lawmakers Send Letters to 4 U.S. Crypto Miners Asking for Details on Environmental Impact
