GLOBAL CHANGE #5 Humans Print

200,000 Yrs Ago Modern Humans Evolve in Africa; they gathered and hunted food. By 130,000 yrs ago, Modern humans exchange resources over long distances 90,000 yrs ago Modern humans make special tools for fishing; 77,000 yrs ago; They record information on objects; 60,000–40,000 yrs ago they create permanent drawings; 40,000 yrs ago they reach Europe; 15,000 yrs ago Modern humans reach the Americas; 12,000 Yrs. the turning point. Eventually, humans found they could control the growth & breeding of certain plants & animals. This discovery led to farming & herding animals, activities that transformed Earth’s natural landscapes—first locally, then globally. 7,000 yrs ago, Potatoes cultivated in South America, Bananas cultivated in Southeast Asia. 3,600 yrs ago,Cacao (chocolate) cultivated in Central America. 2,000 years ago,Tea cultivated in China; 500—Coffee cultivated in Africa Benefits and Costs of Our Success   Benefits By settling down and producing our own food, we created: ●enough food to feed billions of people and respond to catastrophes; ●buildings that protect us from extreme weather; ●technologies that enable us to extend our lives, communicate worldwide, and venture into space; ●time to think, create, play, socialize, and much more. Costs By settling down and producing our own food, we created: ●piles of waste that form natural breeding grounds for contagious diseases; ●large concentrations of people, enabling diseases to spread and become epidemics; ●domesticated landscapes that displace wild habitats; ●loss of wild species that depend on natural habitats. Changing the World:  Unintended Consequences FACT: A cholera pandemic that began in 1961 is still ongoing in Asia, Africa, and the Americas. The number of cases reported in 2006 was 79% more than in 2005. FACT: Every year between 3 and 5 million people get “the flu,” and between 250,000 and 500,000 people die from it. FACT: A child dies of malaria every 30 seconds. About 40% of the world’s population is at risk of malaria. FACT: Every second someone in the world is infected with tuberculosis. One-third of the world’s population is infected.© Copyright Smithsonian Institution

Print:Giclee on Photo Paper

Size:8 W x 10 H x 0.1 D in

Size with Frame:13.25 W x 15.25 H x 1.2 D in

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