Why is Celo carbon-negative?

Could you elaborate on how Celo achieves the status of being carbon-negative? What specific measures and strategies does the platform employ to reduce its carbon footprint, and how does it even surpass neutrality to become carbon-negative? Are there any innovative technologies or partnerships involved in this process? Furthermore, what impact does this carbon-negative status have on the sustainability and attractiveness of the Celo ecosystem for both users and investors?