Today’s Solutions: December 18, 2025

In Alicante, it never rains, but it pours. The city in southeast Spain goes without rain for months on end, but when it comes, it’s torrential, bringing destructive and sometimes fatal flooding – or, at least, it used to.

In San Juan, a low-lying area of the city, authorities have built a new park with a twist. Called La Marjal, it serves as a typical recreation area and a nature reserve – but its primary purpose is to store, and then recycle, rainwater. In function, it resembles an aljibe, a technique developed by Arab residents of Spain many centuries ago in which rainwater is collected and stored in a kind of cistern underneath a building. La Marjal does a similar job, but outdoors.

The water is also then diverted to a nearby treatment plant where it can subsequently be used to clean streets and water parks. In southern Spain, where water is increasingly becoming a scarce resource, the aljibe represents a brilliant solution to water management.

Solutions News Source Print this article
More of Today's Solutions

More US states and cities are boosting minimum wages in 2026. What does it me...

BY THE OPTIMIST DAILY EDITORIAL TEAM As the federal minimum wage remains frozen at $7.25 an hour, unchanged since 2009, cities and states across ...

Read More

3 organization hacks for Type B brains that actually work

BY THE OPTIMIST DAILY EDITORIAL TEAM Scroll through any productivity blog or time-management book, and you’ll find a familiar formula: rigid routines, detailed planners, ...

Read More

An easy hack to counteract the harmful health effects of sitting all day

Humans are not designed to spend the entire day seated. Nonetheless, billions of us do it at least five days per week, as Western ...

Read More

Ensuring no pet goes hungry: The rise of pet food banks in the UK

Pete Dolan, a cat owner, recalls the tremendous help he received from Animal Food Bank Support UK, a Facebook organization that coordinates volunteer community ...

Read More