Today’s Solutions: December 17, 2025

Science

From mathematics and AI to medicine and psychology, The Optimist Daily features the latest news on discoveries, technological advances, and breakthroughs in the world of science. Our Science section is here to engage and enlighten you.

A ‘bionic leaf’ tu

A 'bionic leaf' turns solar energy into chemicals and fuels

Photosynthesis – turning the sun’s energy into food for plants – is the biological system that feeds the world. But despite its awesome power, the process is extremely inefficient. We can’t really blame plants for this because photosynthesis evolved for ancient earth’s Read More...

Introducing to you the “

Introducing to you the "virtual power plant"

In Los Angeles, utility companies aren’t solely relying on fossil fuels to feed the city’s hunger for energy. Instead, they are turning to “virtual power plants”: sprawling networks of independent batteries, solar panels, and energy-efficient buildings that are tied together and remotely Read More...

This U.S. town plans to discon

This U.S. town plans to disconnect from the grid and go 100% renewables

Nassau, New York, a town of 5,000 people just outside of Albany, New York, plans to disconnect from the electrical grid. Last week, the town board voted to get 100 percent of its power from renewables by 2020. The town is making the move both as a way to "increase its reliance on renewable sources Read More...

One of the main arguments agai

One of the main arguments against windfarms has been proven false

Opponents of wind farms have long argued that the sight of turbines on the horizon damages tourism. If this sounds like nonsense, that’s because it is, according to a new study. This argument has actually succeeded in halting the construction of wind farms in the past, but a new study finds that Read More...

Storage can replace gas in our

Storage can replace gas in our electricity networks and boost renewables

Energy storage could replace peak gas in our electricity network. That’s the finding of a study that my colleagues and I recently published in the Journal of Applied Energy. Energy storage is often considered the holy grail of the electricity sector. Tesla’s Powerwall home battery Read More...

New technology uses photosynth

New technology uses photosynthesis to turn carbon dioxide into fuel

Carbon dioxide is a problem; the source of global warming. Right? Yes. But CO2 can also be a solution. Researchers have created a technology that mimics a plant’s ability to inhale carbon dioxide and, with water, convert it into glucose and oxygen. In the process, a synthetic fuel is created Read More...

Polish electric car producer o

Polish electric car producer on horizon?

As I just wrote, two Polish cities (Kraków and Wrocław, where I live) are each planning to launch 200-car electric carsharing programs. Furthermore, a startup is aiming to launch electric carsharing in Poznan, Warsaw, Kraków, Wrocław, Tricity, and Łódź; and Read More...

Tesla Motors and SolarCity rea

Tesla Motors and SolarCity reach deal to merge

Elon Musk took another step in combining his electric-car company with his solar-energy company, announcing on Monday that the two had reached a $2.6 billion agreement. Independent members of both boards approved a deal in which the car company, Tesla Motors, will acquire SolarCity for stock, Read More...

Salt, not batteries, is the so

Salt, not batteries, is the solution to our energy storage needs

In the desert of Nevada stands the most advanced solar power plant in the world that has solved the greatest predicament that comes with harnessing the power of the sun: energy storage. Within a tower surrounded by ten thousand silvery glass panes is a mixture of potassium and sodium nitrate that Read More...

Mercedes debuts world’s

Mercedes debuts world's first fully electric big rig

Mercedes-Benz has unveiled the world's first big rig that drives without a drop of fuel. The new Mercedes-Benz Urban eTruck has an electrically driven rear axle and is powered by three lithium-ion battery modules. The zero-emission vehicle has an admissible total weight of up to 26 tonnes with a Read More...