Climate change: Rising CO2 levels has led to a greener planet Earth, says new study

Climate change: Rising CO2 levels has led to a greener planet Earth, says new study

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Interactive Video

Science, Geography, Biology

11th Grade - University

Hard

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The video discusses the continuous rise in global atmospheric CO2 levels and how plants are using this extra CO2 to enhance their growth. American satellites have observed a significant greening of Earth's vegetated land over the past 33 years, with only a small percentage experiencing losses. The additional leaves from increased CO2 could cover two continental USA's. However, researchers warn that plants may eventually acclimatize to higher CO2 levels, limiting further growth. Future plant growth will also be constrained by water and nutrient availability, which are likely to be affected by climate change.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How much of the Earth's vegetated land has experienced greening according to American satellites?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What has been the trend in global atmospheric CO2 concentrations over the past 33 years?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What does the new study suggest about the extra leaves that grew due to rising CO2 levels?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What argument do researchers make regarding plants acclimatizing to rising CO2 concentrations?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What factors limit future plant growth despite rising CO2 concentrations?

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