On Friday, Democrats on the House Financial Services Committee held a closed briefing on Bitcoin's environmental impact⁠ today, The Block has learned. Three sources confirmed the noon briefing to The Block. A memo for the briefing seen by The Block identified four witnesses who were unanimously anti-crypto. One, Princeton professor Arvind Narayanan, tweeted shortly before appearing that "blockchain has so far proven useless. Worse, it's proven a costly distraction to people and communities who are trying to solve real problems." Another, Yvonne Taylor, leads an environmental organization that is working to shut ... (full story)