Self-tutoring about biological energy sources: the tutor mentions biomass and biofuels. Biomass is the raw organic matter, produced by plants or animals, that can be burned directly or else processed to fuel. When biomass is processed into fuel, the biomass …

Energy, environment: biomass and biofuels, part1 Read more »

Self-tutoring about greenhouse gas emissions: the tutor mentions figures from the US. Part of modern living is driving. Yet, does it fit with a net-zero (emissions) mindset? In the US, transportation causes about 28% of greenhouse gas emissions. Of that, …

Environment: what percent of greenhouse gas emissions come from cars? Read more »

Self-tutoring about environmental concerns: the tutor mentions plastic bags vs paper. I’m not sure exactly what the regulations are, but it seems to me that, shopping nowadays, in most cases, one needs to bring their own bags, buy re-usables at …

Lifestyle, environment: single use plastic, part 1: paper vs plastic Read more »