Gizmodo reports, Elon Musk apparently asked environmental advocacy group the Sierra Club for a favor: Can you make my anonymous $6 million-plus donations no longer anonymous? Per Bloomberg, which obtained an email from Sierra Club executive Michael Brune to staff, Musk made the appeal in the form of a phone call in which he asked if Brune could personally vouch for him on Twitter. Brune did, and it apparently did not go well.