Today’s Solutions: April 25, 2026

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.

This 3D-printed glioblastoma t

This 3D-printed glioblastoma tumor is the first of its kind

Researchers at Tel Aviv University (TAU) have accomplished an impressive feat: they are the first to 3D print an active glioblastoma tumor in a brain-like environment, complete with blood vessels supplying the mass. It’s the most comprehensive replication of a tumor and surrounding tissue to date Read More...

Volvo will soon use fossil-fre

Volvo will soon use fossil-free steel to make its electric trucks

Earlier this year, Volvo pledged to go all-electric by 2030, while making its entire business operations (including its supply chain) climate-neutral by 2050 — all in a bid to do its part in the fight against the climate crisis. To that end, the carmaker has recently made a deal with Swedish Read More...

New tidal energy design harves

New tidal energy design harvests double the energy from ocean waves

Tidal energy could soon hit record conversion efficiency thanks to a new development from scientists at Australia’s RMIT. The engineers have developed a novel design for a convertor that they claim operates with far greater efficiency than current systems. They hope the breakthrough could pave Read More...

Remote Northern Ireland island

Remote Northern Ireland island aims to become carbon neutral by 2030

A UK island has just committed to becoming carbon neutral by the end of the decade. Lying six miles off the coast of Northern Ireland, Rathlin Island has only been connected to the electricity grid since 2007. About 150 people live on the island and they want to produce their own wind and wave Read More...

California’s new energy code

California’s new energy codes push an all-electric housing future

As more cities embrace natural gas-free futures, the US’ most populous state is giving the concept of all-electric homes a big legislative push. California has approved new energy codes that will incentivize electric appliances and efficient heating and cooling systems. Approved by the Read More...

Four strategies to make solar

Four strategies to make solar panels even more sustainable

Solar energy is a renewable source with fairly high reliability and scalability, but even the best solutions have some drawbacks. In the case of solar, the panels themselves are emissions-intensive to produce and require mined silicon, glass, and aluminum. As we continue to improve the Read More...

The Optimist View: Building Ci

The Optimist View: Building Circularity into Electric Vehicles

To eliminate the concept of waste means to design things-products, packaging, and systems-from the very beginning on the understanding that waste does not exist.  - William McDonough BY Kristy Jansen and Sam Suh Earlier this year, I became the proud owner of an all-electric car一a used Read More...

Gold-covered weather station r

Gold-covered weather station raises awareness about the climate crisis

In recent decades, meteorological stations across the Alps have recorded a declining amount of snowy days — a phenomenon that goes hand in hand with growing rates of glaciers melting in the region. In an effort to raise awareness about global warming and the existential threat it poses, artist Read More...

These green SUP boards are mad

These green SUP boards are made from retired turbine blades

Many surfers, divers, and others ocean lovers hold a strong desire to protect our marine environments from pollution and warming. However, some of the equipment these ocean enthusiasts use are not made of sustainable or eco-friendly substances. For instance, stand-up paddleboards, while Read More...

The Ocean Cleanup deploys larg

The Ocean Cleanup deploys largest trash-collecting system thus far

Since it first undertook the daunting task of ridding our oceans of plastic debris in 2013, The Ocean Cleanup has made numerous tweaks to its trash-catching barrier system — and the latest one may be the most important yet. The most recent update involves an active propulsion system rather than Read More...