The proponents of this unrealistic scenario [of reduction in global demand for goods] allow merely a factor-of-two increase across all modes of mobility during the… Read More »Not long ago; or, Little by little (9): Car ownership in China 1999-2019
… the 20th century saw a nearly 40-fold gain in useful energy [i.e. energy available for human use]; since 1800 the gain was about 3,500-fold.… Read More »Technology (26): Vaclav Smil on available energy per capita since 1800
Extrasomatic: outside of the body About 10 millennia ago… the first patches of deliberately cultivated plants as a small share of the Earth’s total photosynthesis… Read More »Technology (25): Vaclav Smil on prime movers and extrasomatic energy