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.

Breakthrough in green hydrogen

Breakthrough in green hydrogen production: cobalt and water replace rare iridium

BY THE OPTIMIST DAILY EDITORIAL TEAM Hydrogen generation is frequently cited as a critical component in the shift to renewable energy. However, according to a paper published in Nature Energy by Kiane de Kleijne of Radboud University and Eindhoven University of Technology, the technique has Read More...

Chicago’s bike path expa

Chicago's bike path expansion keeps city on track for a sustainable future

BY THE OPTIMIST DAILY EDITORIAL STAFF Chicago is preparing to drastically improve its bicycle infrastructure, with plans to build about 47 miles of new bikeways in 2024 alone. This effort is part of a larger pledge to build 150 miles of new and enhanced bikeways over the next few years, Read More...

Pedestrian deaths show first d

Pedestrian deaths show first drop since pandemic, report reveals

THE OPTIMIST DAILY EDITORIAL TEAM After reaching a 40-year peak in 2022, pedestrian fatalities in the United States have finally fallen. According to a survey released Wednesday by the Governors Highway Safety Association (GHSA), the incidence of pedestrian fatalities will decrease by 5.4 Read More...

The leading role your gut micr

The leading role your gut microbes play in stress resilience

BY THE OPTIMIST DAILY EDITORIAL TEAM The gut microbiome—the rich ecology of bacteria that live within us—emerged as a key focus in the study of mental and neurological disorders. Recent research indicates a strong link between the gut and mental health, shedding light on how our gut Read More...

Air pollution down 40%: a loo

Air pollution down 40%: a look at a pedestrianized Paris

BY THE OPTIMIST DAILY EDITORIAL TEAM Paris will seem very different from how it did ten years ago when the Summer Olympics roll around this summer. Since 2014, Mayor Anne Hidalgo has led a substantial makeover in Paris aimed at reducing vehicle dependence and encouraging greener urban living. Read More...

How greenhouse-grown cotton ca

How greenhouse-grown cotton can transform the denim industry

BY THE OPTIMIST DAILY EDITORIAL TEAM The fashion industry has long struggled to source cotton in a sustainable way. While Patagonia, Citizens of Humanity, and Christy Dawn have embraced regenerative agriculture, Dutch denim company G-Star Raw is looking into a new alternative: greenhouse-grown Read More...

Alberta shuts down its last co

Alberta shuts down its last coal plant, ushering in a new energy era

BY THE OPTIMIST DAILY EDITORIAL STAFF Alberta reached a historic milestone by closing its last specialized coal plant. On Sunday, June 16th at 10:57 p.m., Capital Power's Genesee 2 facility shut down, marking the end of the province's coal era. According to the Alberta Electric System Operator Read More...

Cancer therapy breakthrough: X

Cancer therapy breakthrough: X-rays expose and exterminate brain tumor cells with precision

A revolutionary study from Nanyang Technological University in Singapore (NTU Singapore) developed a novel way to selectively target and destroy brain tumor cells using extremely low-dose X-rays. Radiodynamic therapy, a novel treatment, stopped tumor development and doubled survival time in animal Read More...

Insect migration: the hidden s

Insect migration: the hidden superhighway of the Pyrenees

Insects, while frequently disregarded, are critical to the planet's ecosystems. They make up about 90 percent of all animal species and play important functions in both ocean and land ecosystems. Without them, life on Earth could be severely disrupted. New research from the University of Exeter has Read More...

The innovative ‘Sign Lan

The innovative 'Sign Language Ambulance' service revolutionizes emergency care

BY THE OPTIMIST DAILY EDITORIAL STAFF In an unprecedented step to improve emergency care for the deaf population, the North East Ambulance Service (NEAS) in England implemented a British Sign Language (BSL) Relay Service. Starting last month, all ambulances in the region were outfitted with Read More...