Hacker News with Generative AI: Environmental Technology

Graphene and chitosan sponge 10x more efficient at removing gold from e-waste (phys.org)
A team of chemists and materials scientists at the National University of Singapore, working with colleagues from Manchester University, in the U.K., and Guangdong University of Technology, in China, has developed a type of sponge made of graphene oxide and chitosan, that can be used to extract gold from electronic waste.
Google strikes $100/ton deal with Holocene to capture CO2 from the air (theverge.com)
Google just landed a deal to capture planet-heating pollution at a huge bargain: $100 per ton of CO2, the price climate tech startups around the world are racing to achieve in order to make their technologies commercially viable.
Contaminant-tolerant catalyst could capture carbon directly from smokestacks (techxplore.com)
Simple process stores carbon dioxide in concrete without compromising strength (phys.org)
Plastic Scanner (plasticscanner.com)