Environment
Need some good news about the environment? The Optimist Daily is your go-to herald of positive environmental news, highlighting eco-friendly solutions and scientific progress around climate action, circularity, conservation, and more. Learn about everything eco in our Environment section.
This is how butterflies could make our future security systems unhackable
Though fingerprint recognition may make us feel like we have control over our privacy when it comes to accessing our electronic devices, much like other modern security labels — like QR codes and electronic passes — our fingerprints are vulnerable to the possibility of being replicated. A Read More...
Bootleg fire demonstrates efficacy of Indigenous forest management
Last September, we shared an article about the benefits of controlled burns and other Indigenous practices for wildfire management and mitigation. Now, the Bootleg fire in Oregon is offering up some more evidence to support that Indigenous practices could be lifesaving in a climate change-fueled Read More...
Phoenix is using green space to tackle urban heat disparities
Our latest Optimist View discussed how urban green space impacts heat exposure and health outcomes in cities. One of the cities grappling with this issue is Phoenix. As the hottest city in the US, Phoenix is very focused on keeping things cool in a warming world. The city has pledged to reach Read More...
The future is bright white! How paint can help cool a city
Last year, we wrote about a team of researchers led by Purdue University mechanical engineering professor Xiulin Ruan who invented a kind of paint that is so white it reflects more than 95 percent of the sunlight that falls on surfaces covered in it. We love keeping track of solutions as they Read More...
This is how bacteria can help us recycle electric car batteries
Though electric vehicles (EVs) emit much fewer greenhouse gas emissions than cars that burn petrol or diesel, the rare metals needed for manufacturing their batteries are increasingly in short supply. Currently, the EU recycles less than five percent of EV batteries, and the most common technique Read More...
How one neighborhood used gamification to reduce traffic emissions
Green transportation methods like walking, biking, and taking public transportation reduces carbon emissions and improve air quality for residents, but encouraging people to choose these options over personal vehicles is a challenge. One neighborhood in London has finally cracked the code on green Read More...
“Regenerative Meat” — The meaning behind a new food label
If you’ve shopped for meat lately, you might have noticed that some packaging is sporting a new label: “regenerative meat.” Just like “grass-fed” or “antibiotic-free,” this sounds good, but what exactly does it mean, and what qualifications must a farm achieve to label its products as Read More...
Well-digging wild horses and donkeys provide an oasis for wildlife
Wild horses and donkeys roaming the American West tend to have an unfavorable reputation among some conservationists, who consider the species as detrimental to ecological balance because they’re not strictly native. This study, however, has found that these equines may be contributing to crucial Read More...
Beekeepers and airports join forces to save pollinators
Back in 2012, Ben Shertzer, wildlife administrator at Pittsburgh International Airport, found himself dealing with a perplexing problem: swarming bees. The bees would land on the winglets of an aircraft, which interrupts refueling and baggage loading, or they would obscure lights on the taxiways, Read More...
Paris set to transform Champs-Élysées into huge garden
The Champs-Élysées is one of the most famous streets in the world. In its heyday, it was a premier shopping destination and even called “the world’s most beautiful avenue.” Many top companies still fight for retail space along the street and it still offers stunning views of the Arc de Read More...