Memory Memoria: Ser Humano y SustentabilidadVersion en ligne Descubre conceptos clave sobre la relación entre el ser humano y la sustentabilidad. par HECTOR GARCIA The filth was horrible and often toxic. Today it is more like 1 in 200. Life expectancy was around thirty years. Most of our ancestors lived in huts with dirt floors and thatched roofs. We grow to be four inches taller than we were just 250 ago. Streets and alleys were open sewers. There were no toilets. They built their own dwellings. Today we expect to live to be about eighty. Smallpox was eradicated in 1977. They made a lot of their own clothing. Everything was infested with insects and rodents. They wore the same home-made underwear over and over. The astonishing growth in prosperity is one of the greatest events ever. Our ancestors ate gruel One in four kids would die before the age of 5. The enrichment of the last centuries is the hockey stick of human prosperity They grew most of their own food.
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