June 30, 2026

Guo Wengui, the self-exiled Chinese billionaire also known as Miles Guo, was sentenced to 30 years in US federal prison on June 29, 2026, for running a cryptocurrency fraud that stripped more than $1Bn from thousands of followers. US…

Support CleanTechnica's work through a Substack subscription or on Stripe. Small electric aviation vehicles have been getting hyped for … several years. I remember a writer on CleanTechnica who was obsessed with electric vertical…

In Bitcoin news today, Strategy (MSTR), Michael Saylor’s corporate Bitcoin treasury firm, disclosed in a June 29 SEC filing that it may sell up to $1.25Bn worth of Bitcoin, the most explicit signal yet that the company’s…

In XRP news today, David Schwartz, Ripple CTO Emeritus and co-founder of the XRP Ledger, has proposed a transaction reservation mechanism to prevent front-running and sandwich attacks on the protocol’s decentralized exchange. The…

Support CleanTechnica's work through a Substack subscription or on Stripe. I don’t recall a buzzword being as obsessively used as “AI” is today. Everything is being boosted by AI or made possible because of AI or will make you more…