Myth-BustingSeptember 20, 2026
Your Receipts Do Not Belong in the Paper Recycling
Thermal receipt paper carries a bisphenol coating. Put it in the paper stream and the chemistry ends up in recycled paper products.
Waste management · Green engineering
The Waste StackWaste management & green engineering, explained
Breaking down how waste actually gets managed — the mechanisms, the bottlenecks, and the gap between what's claimed and what's actually happening at scale.
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TeardownSeptember 20, 2026
BASF's ecovio Is Certified Home-Compostable. Two Data Sets Are Missing
A PBAT and PLA blend with TUV OK Compost Home certification. The disintegration is tested. The barrier performance and the microplastic question are not.
ExplainerSeptember 20, 2026
Amino Acid Salts Can Scrub CO2 Out of Biogas. Just Not Quite Enough
A Stuttgart process separates 92.3% of the CO2 from raw biogas using a benign solvent. Gas grids want methane above 96%.