Today’s Solutions: October 22, 2026

Solar energy can be stored by converting it into hydrogen. But current methods are too expensive and don’t last long. Using commercially available solar cells and none of the usual rare metals, researchers have now designed a device that outperforms in stability, efficiency and cost. Share: FULL STORY How can we store solar energy for period when the sun doesn’t shine? One solution is to convert it into hydrogen through water electrolysis. The idea is…

Print this article
More of Today's Solutions

How kites and ancient design are replacing fuel in Antarctic exploration

BY THE OPTIMIST DAILY EDITORIAL TEAM The last time a team completed a comparable crossing of Antarctica's interior, they burned through roughly 170,000 liters ...

Read More

Is this nut the most underrated sleepy-time snack? Here’s what the slee...

BY THE OPTIMIST DAILY EDITORIAL TEAM You're doing everything right at bedtime: you stay away from screens after nine, take a soothing dark shower, ...

Read More

Earthworms: a natural solution to farms’ wastewater

Royal Dairy in Royal City, Washington has a problem that's common to dairy farms. The hundreds of millions of gallons of water used by ...

Read More

How Swim Sista Swim Is Redefining Water Confidence for Black Women in the UK

BY THE OPTIMIST DAILY EDITORIAL TEAM Language, Identity & Belonging Welcome to the second week of The Optimist Daily’s Annual Local Changemakers series. Each ...

Read More