The following submission statement was provided by /u/ChriAZii:

Submission Statement

One of the challenges for the widespread adoption of green energy is the lack of large-scale, long-term energy storage. While lithium-ion batteries seem like a potential solution, they rely on scarce materials - often mined under poor working conditions. Furthermore, their short effective operating life and sensitivity to extreme hot or cold makes them only a subpar solutions for a green energy future. The introduction of low-price, sand-based batteries, which are able to store heat for months at a time, could offer a promising alternative.

I originally posted this article in /r/ConstructiveNews.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/10h1z2n/climate_change_sand_battery_could_solve_green/j55x4va/