Exploring Climate Change Over the Last 50 Years

The video discusses the historical context and current challenges of climate change, highlighting the rapid changes in human activity over the last century. It covers the impact of population growth, urbanization, and agriculture on the environment, as well as the increase in greenhouse gases and global warming. Despite these challenges, the video emphasizes the potential for positive change and the importance of making informed choices for a sustainable future.

What significant change occurred in the last 50 years regarding human population?

• It remained the same.

• It decreased by half.

• It doubled.

• It tripled.

What percentage of the world's tropical forests has been lost in recent decades?

• 40%

• 30%

• 20%

• 10%

What is the primary use of water taken from nature?

• Industrial use

• Household consumption

• Recreational activities

• Agricultural irrigation

What major change in the atmosphere began in the 1800s?

• Decrease in nitrogen levels

• Increase in ozone levels

• Increase in greenhouse gases

• Decrease in oxygen levels

By how much has the Earth's temperature increased due to global warming?

• 2 degrees Celsius

• 0.5 degrees Celsius

• 1 degree Celsius

• 1.5 degrees Celsius

What is the current average life expectancy on Earth?

• 55 years

• 60 years

• 65 years

• 71 years

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CCSS.6.SP.B.5B

How many children does the average woman have today compared to 50 years ago?

• 3 children today, 4 children 50 years ago

• 4 children today, 3 children 50 years ago

• 2.4 children today, 5 children 50 years ago

• 5 children today, 2.4 children 50 years ago

What percentage of the world's population is literate today?

• 70%

• 60%

• 86%

• 50%

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What is the main message of the final section of the video?

• We have no control over the future.

• The environment will fix itself.

• The future is predetermined.

• We can choose to build a sustainable future.

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CCSS.RI.6.2

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What is required to build a future where people and nature can thrive?

• Ignoring environmental issues

• Continuing current practices

• Making a conscious choice to change

• Relying on technology alone

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CCSS.RI. 9-10.2

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