Bend - 1 click carbon accounting for startups

@charlotte_moore4 Patch has hundreds of different offerings, but for our integration we selected a blend between two highly credible projects, one a relatively low-cost US-based forest preservation project, and the other a high-cost carbon removal project (through Charm Industrial). The reason we do this is to funnel investment into carbon removal, which is obviously the gold standard for carbon 'offsetting' since it's actually pulling CO2 out of the atmosphere! The math works out to $100 per tCO2e for the blend :)

@darren_caulley So, today, we would take a transaction from "Azure DevOps" and do a merchant lookup in our database—likely getting us to "Microsoft Azure." "Microsoft Azure" is what we'd consider a subsidiary merchant, or department of Microsoft, a public company for which we've aggregated sustainability data. Today, we don't have an Azure specific-factor, so we'd roll up to the carbon intensity for Microsoft, and tell you the estimated CO2e emissions for that purchase as a function of Microsoft's total revenue and total emissions. In the future, we plan to support "weighting" specific subsidiaries, such that a purchase with Azure would be less carbon-intense than a purchase of an Xbox, for example (or at least, that's my guess :))