system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: we already know how photosynthesis is done ; so why cant we creat “artificial plants” that take CO2 and gives O2 and energy in exchange?
gpt
Artificial photosynthesis actually is a deeply studied field of research, where you use sunlight to drive a reaction that releases oxygen from various solutions. The problem is, the components needed in the reaction are inefficient, degrade/deplete quickly, or are expensive to make/maintain.