Farmers might consider adding seaweed to the diet of their cattle because it will reduce the methane output by the animals by 80%! The research has been revealed in this article:

https://theconversation.com/can-seaweed-save-the-world-well-it-can-certainly-help-in-many-ways-201459

But before we get too excited we must not make the usual mistake we humans so often do when scaling up to meet a demand:

https://thehill.com/opinion/energy-environment/592243-hold-off-for-now-on-feeding-seaweed-to-cows-to-reduce-methane

So if we can add other uses of seaweed we might say, ‘Hey! Here’s another good one!’

Biodegradable packaging from seaweed!

https://www.sweed.uk/

This reminds me of the sand battery I included in a blog some time ago:

https://borderslynn.com/2022/07/05/the-sand-is-running-out

So before a great idea can become a grand solution to our desire to save the planet, first we must do a study of an environmental cost benefit analysis to avoid harm.

For example, a sea salt battery might be a better solution than the sand battery:

https://www.euronews.com/green/2022/12/13/significant-breakthrough-this-new-sea-salt-battery-has-4-times-the-capacity-of-lithium