Microsoft Corporation is a leading developer of personal-computer software systems and applications. The company also publishes books and multimedia titles, produces its own line of hybrid tablet computers, offers e-mail services, and sells electronic game systems and computer peripherals (input/output devices).

reNature and CAMTA, a Brazilian farmers cooperative, started a pioneering carbon credit project, together with Rabobank who carried out a risk analysis. The carbon credit was sold to Microsoft through a Rabobank marketplace called Acorn.