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Analyse climate data

11th grade (Year 12 in England) · 16 questions · Common Core: NGSS.HS-ESS3-5, NGSS.HS-ESS2-4, NGSS.SEP 4 · England: GCSE Combined Science: Chemistry of the atmosphere (evaluating evidence for climate change)

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Date

Score/ 16

  1. Question 1

    A website claims "the climate has always changed, so today's warming is natural". Which response is best supported by evidence?

    • A. Natural changes cannot happen
    • B. Past changes were mostly slower and had natural causes; today's rapid warming matches the rise in CO₂ from human activity
    • C. The claim proves humans have no effect
    • D. There has been no warming since 1900

  2. Question 2

    Annual mean CO₂ at the Mauna Loa observatory was about 317 ppm in 1960 and about 414 ppm in 2020. What was the mean rate of increase, in ppm per year? Give 1 decimal place.

    Answer

  3. Question 3

    Climate evidence: which statement is NOT true?

    • A. Sea level is rising as oceans warm and land ice melts.
    • B. Arctic sea ice in summer has shrunk since satellite records began in 1979.
    • C. Melting sea ice is the main cause of sea-level rise.
    • D. Global average surface temperature has risen by more than 1 °C since the late 1800s.

  4. Question 4

    The CO₂ record from Mauna Loa rises every year but also goes up and down within each year. Why the yearly wiggle?

    • A. Volcanoes erupt every winter
    • B. The instruments are faulty
    • C. Northern Hemisphere plants absorb CO₂ in spring and summer and release it in autumn and winter
    • D. People burn no fuel in summer

  5. Question 5

    Annual mean CO₂ at the Mauna Loa observatory was about 369 ppm in 2000 and about 414 ppm in 2020. What was the mean rate of increase, in ppm per year? Give 1 decimal place.

    Answer

  6. Question 6

    Climate evidence: which statement is NOT true?

    • A. Burning fossil fuels is the main cause of the recent rise in atmospheric CO₂.
    • B. Global average surface temperature has risen by more than 1 °C since the late 1800s.
    • C. Sea level is rising as oceans warm and land ice melts.
    • D. A cold winter in one city disproves global warming.

  7. Question 7

    A website claims "the climate has always changed, so today's warming is natural". Which response is best supported by evidence?

    • A. Past changes were mostly slower and had natural causes; today's rapid warming matches the rise in CO₂ from human activity
    • B. There has been no warming since 1900
    • C. Natural changes cannot happen
    • D. The claim proves humans have no effect

  8. Question 8

    Annual mean CO₂ at the Mauna Loa observatory was about 326 ppm in 1970 and about 390 ppm in 2010. What was the mean rate of increase, in ppm per year? Give 1 decimal place.

    Answer

  9. Question 9

    Climate evidence: which statement is NOT true?

    • A. Burning fossil fuels is the main cause of the recent rise in atmospheric CO₂.
    • B. A cold winter in one city disproves global warming.
    • C. Sea level is rising as oceans warm and land ice melts.
    • D. Global average surface temperature has risen by more than 1 °C since the late 1800s.

  10. Question 10

    Pre-industrial CO₂ was about 280 ppm. In the 2020s it is above 420 ppm. Roughly what percentage increase is this?

    • A. about 50 %
    • B. about 150 %
    • C. about 5 %
    • D. about 15 %

  11. Question 11

    Annual mean CO₂ at the Mauna Loa observatory was about 339 ppm in 1980 and about 414 ppm in 2020. What was the mean rate of increase, in ppm per year? Give 1 decimal place.

    Answer

  12. Question 12

    Climate evidence: which statement is NOT true?

    • A. A cold winter in one city disproves global warming.
    • B. Burning fossil fuels is the main cause of the recent rise in atmospheric CO₂.
    • C. Arctic sea ice in summer has shrunk since satellite records began in 1979.
    • D. Sea level is rising as oceans warm and land ice melts.

  13. Question 13

    How do scientists know CO₂ levels from hundreds of thousands of years ago?

    • A. they guess
    • B. from old newspapers
    • C. from air bubbles trapped in ice cores from Antarctica
    • D. from satellite photos of the past

  14. Question 14

    Annual mean CO₂ at the Mauna Loa observatory was about 369 ppm in 2000 and about 414 ppm in 2020. What was the mean rate of increase, in ppm per year? Give 1 decimal place.

    Answer

  15. Question 15

    Climate evidence: which statement is NOT true?

    • A. Arctic sea ice in summer has shrunk since satellite records began in 1979.
    • B. Most of the extra CO₂ comes from volcanoes.
    • C. Global average surface temperature has risen by more than 1 °C since the late 1800s.
    • D. Sea level is rising as oceans warm and land ice melts.

  16. Question 16

    The CO₂ record from Mauna Loa rises every year but also goes up and down within each year. Why the yearly wiggle?

    • A. Volcanoes erupt every winter
    • B. Northern Hemisphere plants absorb CO₂ in spring and summer and release it in autumn and winter
    • C. People burn no fuel in summer
    • D. The instruments are faulty

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  1. Past changes were mostly slower and had natural causes; today's rapid warming matches the rise in CO₂ from human activity
  2. 1.6
  3. Melting sea ice is the main cause of sea-level rise.
  4. Northern Hemisphere plants absorb CO₂ in spring and summer and release it in autumn and winter
  5. 2.3
  6. A cold winter in one city disproves global warming.
  7. Past changes were mostly slower and had natural causes; today's rapid warming matches the rise in CO₂ from human activity
  8. 1.6
  9. A cold winter in one city disproves global warming.
  10. about 50 %
  11. 1.9
  12. A cold winter in one city disproves global warming.
  13. from air bubbles trapped in ice cores from Antarctica
  14. 2.3
  15. Most of the extra CO₂ comes from volcanoes.
  16. Northern Hemisphere plants absorb CO₂ in spring and summer and release it in autumn and winter