1. If we don't halt population growth with justice and compassion, it will be done for us by nature, brutally and without pity - and will leave a ravaged world. Nobel Laureate Dr. Henry W. Kendall

2. YearPopulation 1 0.2 billion (200 million) 1000 0.3 billion (275 million) 1500 0.5 billion (450 million) 1650 0.5 billion (500 million) 1750 0.7 billion (700 million) 1804 1.0 billion 1850 1.2 billion 1900 1.6 billion 1927 2.0 billion 1950 2.6 billion 1955 2.8 billion 1960 3.0 billion 1965 3.3 billion 1970 3.7 billion 1975 4.0 billion 1980 4.5 billion 1985 4.9 billion 1990 5.3 billion 1995 5.7 billion 1999 6.0 billion 2006 6.5 billion 2009 6.8 billion 2012 7 billion (estimated) 2025 8 billion (estimated) 2050 9 billion (estimated)

5. Countries and Areas Ranked by Population: 2010 RANKCOUNTRY OR AREAPOPULATION 1China1,339,190,000 2India1,184,639,000 3United States309,975,000 4Indonesia243,181,400 5Brazil193,364,000 6Pakistan170,260,000 7Bangladesh164,425,000 8Nigeria158,259,000 9Russia141,927,300 10Japan127,380,000 Source: U.S. Census Bureau, International Data Base

6. US 311,376,269 World 6,919,193,975 13:13 UTC (EST+5) May 18, 2011 US and World Population Clock U.S. 313,599,572 World 7,015,273,794 20:53 UTC (EST+5) May 23, 2012

7. TThe Earth is an Island There are a finite number of resources that we have on this planet we call Earth What will happen when the resources are gone? food water shelter space Humans in the Biosphere

8. HHow has human life on Earth changed over time? Hunting and Gathering Agriculture farming domestication of animals Industrial growth Urban development Humans in the Biosphere (Green Revolution) (Technology)