ENVS 1126 Chapter : ENVS September 25
ENVS September 25, 2014
The Human Population
Modern humans traced to east Africa 150,000 years ago
Left Africa 55,000-85,000 years ago
Polynesian migrations from eastern Indonesia 11,000 years ago
Neolithic Revolution- plant domestication
Wheat and barley- 9,000 to 10,000 years ago
Cotton, squash, beans, guava, maize, etc. - South America 4,000 to 5,000 years ago
11,500 bc- rice in china
12,000 bc- natufians in the levant begin harvestin wild grasses
9,800 bc- earliest evidence for domesticated wheat at PPNA sites in the levant
Industrial Revolution- England
18th and 19th century
Machine based manufacturing
Steam power and coal
Medical Revolution- late 19th century
Louis Pasteur- germ theory of disease
Penicillin- Alexander Fleming, 1928
First sewage treatment plant in the U.S.- New York 1886
Cholera cases- 152,929 in 2003
Cholera is a disease of the poor, born of too many people living cheek by jowl without
the infrastructure of a sewage system or clean drinking water
Tuberculosis cases- 8.7 million in 2003
People infected with HIV- 34 million in 2011
Document Summary
Modern humans traced to east africa 150,000 years ago. Polynesian migrations from eastern indonesia 11,000 years ago. Wheat and barley- 9,000 to 10,000 years ago. South america 4,000 to 5,000 years ago. 12,000 bc- natufians in the levant begin harvestin wild grasses. 9,800 bc- earliest evidence for domesticated wheat at ppna sites in the levant. First sewage treatment plant in the u. s. - new york 1886. Cholera is a disease of the poor, born of too many people living cheek by jowl without the infrastructure of a sewage system or clean drinking water. People infected with hiv- 34 million in 2011. Global human carrying capacity- 7. 7 billion 2004 estimate (currently 7. 3 billion) Living on less than a day 3. 5 billion. Living on more than a day 53 million. Average income per capita has more than tripled. Global economic output has risen more than 7 times. Life expectancy has risen from 53 to 63.
