Global Warming: A History of a Hot Debate

What is the main reason for the rise in Earth's temperature?

• Increased planting of trees

• The decrease in large factories

• Human activities over the past two hundred years

• Natural cycles of the Earth

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Who calculated that doubling the carbon dioxide in the atmosphere would significantly increase Earth's temperature?

• Charles Darwin

• Albert Einstein

• Svante Arrhenius

• Isaac Newton

What did scientists in the nineteenth century begin to understand about the atmosphere?

• That it was unchangeable

• That carbon dioxide and certain gases affected Earth's energy system

• That the atmosphere was cooling down

• That pollution had no effect on temperatures

What did some scientists believe might cause the planet to cool?

• The increase in tree planting

• The decrease in factory pollution

• Tiny particles in the air blocking the sun's energy

• The heating effect of carbon dioxide

How did improved computer technology help scientists?

• By allowing them to play video games

• By helping them test ideas with better models

• By enabling them to predict the weather accurately

• By reducing the amount of pollution

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What gases in the atmosphere are linked to the rise in Earth's temperatures?

• Neon and Argon

• Carbon dioxide and Methane

• Helium and Hydrogen

• Oxygen and Nitrogen

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What did the evidence from computers show about Earth's temperature?

• That it was decreasing

• That it was increasing

• That computers had no impact

• That it remained the same

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What is necessary besides scientific knowledge to address climate change?

• Only relying on scientists

• Society deciding what to do with the knowledge

• More video games

• Ignoring the problem

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What effect did the growth of factory-made goods and automobiles have on the atmosphere?

• Increased carbon dioxide levels

• No significant effect

• Increased oxygen levels

• Reduced carbon dioxide levels

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