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Explore current and projected world population figures, urbanization rates, ecological footprints, species extinction causes, coral reef loss, and more global issues.
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1 What is the current human population of the world? • 3.5 billion • 7 billion • 10.5 billion • 18.5 billion
2 • What was the world’s human population in 1960? • 0.5 billion • 1 billion • 3 billion • 5 billion
3 What is the world population projected to be in 2050? • 8 billion • 9 billion • 11 billion • 14 billion
4 Q: What are the first, second, third and fourth most populous countries in the world? A: • China, • India, • United States, • Indonesia Then… Brazil, Pakistan, Nigeria, Bangladesh, Russia, Japan
5 By about how many people per year is world population growing? • 25 million • 55 million • 80 million • 95 million
6 • What percentage of the world’s people today live in cities? • 10% • 25% • 50% • 80%
7 What city in the world has the largest population? • Tokyo • Mexico City • Cairo • New York City • Los Angeles A: Tokyo, with 37 million! Then
Largest cities • 2. Jakarta, Indonesia (26,063,000) • 3. Seoul, South Korea (22,547,000) • 4. Delhi, India (22,242,000) • 5. Shanghai, China (20,860,000) • 6. Manila, Philippines (20,767,000) • 7. Karachi, Pakistan (20,711,000) • 8. New York, USA (20,464,000) • 9. Sao Paulo, Brazil (20,186,000) • 10. Mexico City, Mexico (19,463,000) • 11. Cairo, Egypt (17,816,000) • 12. Beijing, China (17,311,000) • 13. Osaka, Japan (17,011,000) • 14. Mumbai (Bombay), India (16,910,000) • 15. Guangzhou, China (16,827,000) • 16. Moscow, Russia (15,512,000) • 17. Los Angeles, USA (14,900,000)
8 Because of urban sprawl in the United States, an area the size of which state is paved over each year? • Texas • Delaware • Rhode Island • Kansas A: Delaware
9 In 1950, average life expectancy worldwide was: • 36 • 49 • 56 • 66 A: 49
10 In 2000, the average life expectancy worldwide was: • 46 • 56 • 65 • 76 A: 65
11 What is the measurement tool called that is used to describe the area of the earth’s surface necessary to support a given human lifestyle? A: Ecological Footprint
12 What country has the largest Ecological Footprint per person? • United States • China • Japan • Afghanistan A: USA
13 What is the single greatest cause of species extinction? • Poaching • Hunting for food • Capture for exotic pet trade • Habitat destruction A: Habitat destruction
14 The rapid loss of species we are seeing today is estimated by experts to be between _____ and _______ times higher than the natural extinction rate.* (The rate that would exist if humans weren’t around) • 5 and 10 • 10 and 100 • 100 and 1,000 • 1,000 and 10,000 A: 1,000 and 10,000 (source wwf)
15 What percentage of global coral reefs are estimated to have been lost in the last century? • 12% • 27% • 50% • 58% A: 27%
16 • Roughly what percentage of the world’s people live on $2/day or less? • 15% • 30% • 40% • 65% A: 40% !
17 What is the most widely spoken language on the earth? A: Mandarin Chinese
18 Roughly how many people in the world today are chronically hungry? • 1 million • 58 million • 870 million • 2 billion A: 870 million (about 12.5% or 1 in 8!)
19 Roughly what percentage of the world’s people lack access to safe water supply? • 10% • 15% • 20% • 50% A: 20% (1 out of every 5 people!)
20 Approximately what percentage of global energy do hydrocarbon fuels (fossil fuels) generate? • 20% • 40% • 60% • 80% A: 80%
21 • What activity accounts for the highest water use world wide – agriculture, industry or domestic (household)? (rank them) A: Agriculture: 65-70% of water Industry: 20-25% Household/domestic: 13%
22 How much has the sea level risen over the last 100 years, according to NOAA? • About 1 inch • about 3 inches • about 7.5 inches • About 12 inches A: About 7.5 inches
23 How much is sea level predicted to rise by 2100? • Up to 10 inches • Up to 15 inches • Up to 20 inches • Up to 27 inches A: Up to 27 inches
24 What element (from the periodic table) do many scientists believe can provide an unlimited source of clean energy? A: hydrogen