Today’s Solutions: December 20, 2025

Evergreen

Researchers are turning outdat

Researchers are turning outdated phones into eco-friendly mini data centres

BY THE OPTIMIST DAILY EDITORIAL TEAM That outdated phone sitting in your junk drawer could be doing a lot more than gathering dust. According to a new European study, it might just be the next tiny tech hero helping researchers monitor marine life or improve your local bus stop. The concept Read More...

Brewing better health: Harvard

Brewing better health: Harvard study explains what coffee has to do with aging well

BY THE OPTIMIST DAILY EDITORIAL TEAM Your daily cup of coffee might be doing more than waking you up; it could be helping you age more healthfully. According to a sweeping new study from Harvard University, moderate coffee consumption during midlife is linked to better mental and physical health Read More...

New rules allow thousands more

New rules allow thousands more Australians to donate plasma, regardless of sexuality

BY THE OPTIMIST DAILY EDITORIAL TEAM In a historic shift for both public health and LGBTQIA+ rights, Australia is lifting long-standing restrictions that effectively barred many gay and bisexual men from donating blood and plasma. Beginning in July, the country will become the first in the world Read More...

How Finland’s giant sand

How Finland's giant sand battery is storing clean energy (and cutting emissions by 70 percent)

BY THE OPTIMIST DAILY EDITORIAL TEAM In a small Finnish town with a big climate goal, an unassuming tower of sand is quietly storing solar and wind energy all while making a powerful statement about clean tech innovation. Pornainen, in southern Finland, is now home to the world’s largest Read More...

Decriminalizing rough sleeping

Decriminalizing rough sleeping: A new chapter in compassion and justice

BY THE OPTIMIST DAILY EDITORIAL TEAM In a long-awaited step towards justice for the most vulnerable, the UK government has announced plans to scrap the Vagrancy Act of 1824. The law, which criminalises rough sleeping in England and Wales, will be replaced next year with more compassionate, Read More...

How to be an ally part I: perf

How to be an ally part I: performative allyship

BY THE OPTIMIST DAILY EDITORIAL TEAM Why we’re revisiting our series on allyship this Pride Month At The Optimist Daily, we believe that allyship is a lifelong practice; one that demands reflection, humility, and, most of all, action. This June, we are celebrating Pride Month but also Read More...

Turning ashes into action: how

Turning ashes into action: how memorial reefs could restore Britain’s seabeds

BY THE OPTIMIST DAILY EDITORIAL TEAM Funerals are surprisingly polluting. A single burial emits around 833 kilograms of CO2, while a typical cremation releases about 400. Add in the environmental toll of concrete, steel, and embalming chemicals, and the traditional funeral industry starts to Read More...

The 9 best beverages to boost

The 9 best beverages to boost hydration this summer, according to dietitians

BY THE OPTIMIST DAILY EDITORIAL TEAM We all know we should drink more water. But what if you're over it? Hydration is essential for everything from brain function to joint health, but that doesn’t mean your only option is to endlessly sip plain old H2O. According to dietitians, there are Read More...

Young adults are the driving f

Young adults are the driving force behind hopeful future for a smoke-free America

BY THE OPTIMIST DAILY EDITORIAL TEAM Smoking in America is steadily declining, and young adults are at the forefront of this health transformation. A recent study by scientists at the University of California San Diego shows that younger generations are quitting cigarettes faster than ever Read More...

A splash of good news for ocea

A splash of good news for oceans: new plastic dissolves in seawater in just hours

BY THE OPTIMIST DAILY EDITORIAL TEAM In a world drowning in plastic, scientists in Japan may have found a lifeline. Researchers from the RIKEN Center for Emergent Matter Science and the University of Tokyo have developed a new type of plastic that can dissolve in seawater within hours without Read More...