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