"Where do most particulate emissions attributed to cars come from? California speaks as if their primary source is the tailpipe. That was true in the past. But today most vehicle-related particulate matter comes from tire wear. Cars are heavy, and as their tires rub against the road, they degrade and release tiny, often toxic particles. According to measurements by an emission-analytics firm, in gasoline cars equipped with a particle filter, airborne tire-wear emissions are more than 400 times as great as direct exhaust particulate emissions."

"Funded by the 2021 Bipartisan Infrastructure Law, the prize seeks to develop ​“a cost-effective and sustainable recycling industry” for wind turbine components that aren’t being recycled commercially today, including wind turbine blades and the supersized magnets inside some generators. Each winning group receives a $75,000 cash prize to help advance its recycling idea. If a team’s initial results are promising, it may go on to win an additional half a million dollars in cash, as well as a $100,000 voucher for technical assistance from a DOE national laboratory."

"In the startup’s carbon dioxide removal system, sunlight will activate the chemical, and the acidic protons will flow into a tank of seawater. That will cause carbon dioxide gas to bubble out of the water, something like it does in a highly carbonated soda. The system captures the carbon dioxide for disposal and transfers the protons back to the photoacid. The seawater is returned to the ocean."

"As huge numbers of solar panels are deployed now, the future waste challenge also keeps growing. By the end of the decade, one estimate found that the number of solar panels due to be retired would cover 3,000 football fields. By 2050, the U.S. could produce two million metric tons of solar panel waste each year."

"Lilac says its technology is much faster, taking a matter of hours from the time of extraction, while preserving water levels. Its method deploys reusable ceramic 'beads' that attach to lithium atoms to separate them from the brine. Snydacker says the company has spent more than 500,000 hours testing the technology on more than 70 brine samples around the world."