Cellugy, the industrial biotechnology startup developing innovative, biobased solutions to replace fossil-based materials in the personal care sector, has

Engineers are using supercritical CO2 to replace toxic SF6 in circuit breakers. Discover more in IEEE Spectrum's top climate tech stories of 2025.

Plastic-coated fertilizers used on farms are emerging as a major but hidden source of ocean microplastics. A new study found that only a tiny fraction reaches beaches through rivers, while direct drainage from fields to the sea sends far more plastic back…