Here is an idea for a cryptocurrency I have been toying with for a few days: It can use any consensus algorithm that doesn’t require huge amount of energy as the number of user grows (so no Proof of Work). When a new block is added, part of the coins that get generated are sent to a few fixed wallets. These wallets would be well known by all the nodes (so nodes can all validate that these are the right addresses) and would belong to a select few non-profit organizations that actively work in environmental restoration/protection (e.g. https://edenprojects.org/ or https://theoceancleanup.com/), carbon capture (e.g. https://climeworks.com/) and other related fields (e.g. https://www.catf.us/), I haven't really thought of which organization to give to, this list is just an example. Each non-profit would need to publicly declare that they own these wallets to ensure that the coins aren't being taken by a third party. The list of organizations/wallets could change over time, and would be selected by the community, probably with a formal process where anybody can create a proposal, then people can vote on them.

Here are a few questions that I have: - Are there any similar project already existing? I'd be happy to contribute to an already established project. - What are the problems you can foresee with this idea? - In particular, what are potential security issues here, how can I make sure no attacker can add custom addresses to this list? - Do you have any improvements to this? - Any pointer to an appropriate blockchain tech to build this on? I assume it would take far longer to implement it from scratch.