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.
Paris lowers the speed limit on most city streets
Pedestrians and cyclists in Paris are welcoming a new policy that will restrict the speed limit on nearly all streets in the French capital to just 30 kph, down from 50 kph. The law is the latest move by the municipality to advance the city closer to its climate targets and transform people’s Read More...
A solution to greener homes could be right underneath our feet
Swiss researchers from the Wood Materials Science Laboratory at the ETH Zürich and the Swiss Federal Laboratories for Materials Science and Technology in Dübendorf are working on an exciting new way to generate energy that requires us to simply move around our own homes and buildings. The Read More...
Potato milk is the newest (and perhaps greenest) plant-based option
Potatoes are highly versatile root vegetables. You can have them as hashbrowns and home fries for breakfast, French fries at lunch, chips and dip for a snack, and roasted, mashed, or baked for dinner—but now potatoes are truly proving their range and versatility by pushing their way into the Read More...
Community-level big data offers a clearer picture of disaster resiliency
Hurricane Ida has demonstrated once again how chaotic the days after a natural disaster can be. Relief organizations are often on the ground right away, but determining the extent of damage and displacement can take time, delaying the delivery of essential supplies. In the wake of Hurricane Harvey, Read More...
Modified prairie grass cleans up munitions chemical pollution
Military conflict takes a significant toll on human life and local infrastructure, but did you know that munitions chemicals can also leach into soil and groundwater, contaminating ecosystems for generations? One specific explosive chemical, called RDX can cause seizures and possibly cancer when it Read More...
This startup helps build solar panels where they’re most needed
Most of the new solar panels that are being built in the US are located in states where the process is easiest or policies are most favorable, instead of where solar could have the biggest impact on reducing CO2 emissions. A Nashville-based startup, called Clearloop, wants to change that by Read More...
Leaded gasoline has officially been globally discontinued
The health effects of leaded fuel were first questioned in 1924 when five workers died at a Standard Oil refinery, but despite concerns, the lead continued to be added to gasoline everywhere until the 1970s. Today, the UN Environment Programme (UNEP) has officially announced that leaded fuel has Read More...
‘Nanojars’ can help remove CO2 and other major pollutants from water
While the most common environmental concern regarding carbon dioxide has to do with its greenhouse effects in the atmosphere, a lot of it actually ends up in our oceans, making them more acidic. In a bid to find a solution to this problem, researchers have recently developed “nanojars” that can Read More...
This is how we could put our urban rooftops to better use
As cities around the world look to integrate more greenery into their urban landscapes, rooftops could offer a solution to the problem of land scarcity in growing urban areas. However, a new book from architecture firm MVRDV explores more useful ways to transform roofs in order to improve the Read More...
A group of students is using bubbles and robots to clear the world's rivers
Ocean plastic is a persistent problem that endangers wildlife and humans. Around eight to 12 million tons of plastic end up in the sea each year, inspiring projects like The Ocean Cleanup’s trash collecting system and this floating plastic island. However, removing plastic from the ocean is Read More...