đ§ Impact Briefing. ImpactAlphaâsDavid Bank joins host Brian Walsh to round up the takeaways from this weekâs Agents of Impact Call No. 37 on the rising price of carbon (see below) and share highlights from CDPâs Paula DiPerna, General Atlanticâs Emmanuel Lagarrigue, Estabrook Carbonâs Edwin Datson and Regen Networkâs Gregory Landua. Delton Chen articulates the case for a Global Carbon Reward. Plus, the headlines.