Thank you for the great proposal Steve!
Personally, I'm not against charitable donations/helping reduce human impact on climate change/facilitating longevity researches. I personally have donated to charitable causes, hold some Klima, and would love to live a long healthy life. However, I feel that's perhaps more suited to be done on an individual level (either via Tychee, or as a small collective). If there are charitable causes that the dao and/or the community feel strongly for, we can easily have a charity drive, using Olympus' social media accounts to rally the ohmies. (Perhaps similar to how we promoted 3,3 together on PoolTogether.) Those that agree and feel the same way about said charitable causes can choose to donate the amount they are comfortable with, at a time of their choice. With the large, passionate community that we currnetly have, the influence of Olympus will definitely be noticed if any such charity drives were to happen. Alternatively, there are charity oriented ohmie sub-cultures already existing in examples like FrenDao, where a group of ohmies pool money together and vote on which charities to donate to.
I feel that as the reserve currency of the crypto community, OHM can and will be used for charitable donations. But it's better suited for individuals or collectives besides OlympusDao itself. If OHM is the reserve currency then many would see OlympusDao as the proverbial central bank of crypto. As such, I feel the focus has been and should continue to be on monetary policies - to establish and solidify OHM's position as the reserve currency of crypto. Charitable donations can be positive marketing for Olympus, the same positive marketing can be done through a charity drive I stated above as well - similar effect, less cost to the protocol, more freedom of choice to individual ohmies.
As Olympus grows, our Dao team is also growing very fast. So many talented and passionate contributors are joining every week. We should really be focusing on attracting and retaining talent - competitive & fair pay is one key component of that. I'm not part of the dao contributors, but I feel strongly about this - the success of Olympus depends on its dao contributors. That's why I feel this would be a much better use of the dao treasury funds.
Based on the above reasons, my vote goes to option #1.