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Independent:Time
Dependent : tempuratutre changes

Compare: The predicted temperature was not as drastic as the observed temp. But they both change at an increasing constant rate.

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What overall trend does the pie chart show? Scientists agree that global warming is happening
Independent: Expertise in climate science
Dependent: % who agree that global warming is human-created
What overall trend does the graph show? As the amount experts in climate science increase so dose the percentage amount of people that agree that climate change is human-created.

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Independent: Time
Dependent: Change in temperature and change in volcanic activity
Compare: As volcanic activity decreases, temperature increases.

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Dependent: Temperature and Solar Irradiance
Independent: Time
How do the trends of the two dependent variables compare? The temperature starts to increase at a faster rate and the solar irradiance starts to decrease, as time goes on.

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Independent : Time
Dependent : Global temperature and number of cosmic rays
How do the trends of the two dependent variables compare? the number of cosmic rays has increased at a faster rate, as the global temperature has decreased.

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DO NOT EDIT THIS PADLET - MAKE YOUR OWN COPY!

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DO NOT EDIT THIS PADLET - MAKE YOUR OWN COPY!

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First, you MUST login to padlet - click "log in" and then "log in with google"

One person in your group should make their own copy and then share their screen so your group can work on it together.

Click "remake" in the top right hand corner to make your own copy.

MAKE SURE YOU CHECK BOTH "COPY DESIGN" AND "COPY POSTS"!!

Once you have made your copy of the padlet, click the "share" link in the top right corner and click the pink "change privacy" link. Scroll down to "visitor permissions", and click the blue button to change the setting to "can edit". Now, multiple team members can work on it at once!

Copy the link and share it in the chat so your team can work can split up the graphs between yourselves to analyze.

Then you may delete this post.

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Hypotheses - change position and edit content

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Hypotheses - change position and edit content

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Analyses - edit content, do not change position

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Analyses - edit content, do not change position

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"CO ₂ measurements are inaccurate. The CO ₂ measurements used as evidence are taken at the top of Mount Mauna Loa Volcano in Hawaii – which doesn’t seem the best place to be measuring CO ₂!"

Is the hypothesis true or false? false
Explain your answer, using the graph as evidence:
The CO2 levels at the top of Mount Mauna Loa track very closely with high correlation to the global average.

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"The sun is getting hotter. Over the past few hundred years, there has been an increase in the numbers of sunspots and therefore solar irradiance, which directly correlations with global warming.”

Is the hypothesis true or false? False
Explain your answer, using the graph as evidence: First, it is not a "few hundred" years. Second, there is a significant divergence between changes in temp and solar irradiance.

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"Most scientists disagree. 31,000 scientists signed a petition, stating that there is no convincing scientific evidence human’s are causing global warming.”

Is the hypothesis true or false? False
Explain your answer, using the graph as evidence: _As shown by the pie chart, black represents the number of people that agree global warming is caused by humans. Moreover, because the pie chart is mainly black, more people agree then disagree. Secondly, 13,974 people signed the petition, not 31,000.

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"The scientific models used to predict climate change are unreliable. Models created in the 70s have not accurately predicted temperature so far, so why would they be able to predict the future?"

Is the hypothesis true or false? False
Explain your answer, using the graph as evidence: __The model from the 70s has proven to be accurate, as there is a high correlation between the temp predicted by the model and the observed temps.

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"CO ₂ has nothing to do with global warming. Changes in CO ₂ do not match up with changes in temperature on earth."

Is the hypothesis true or false? false
Explain your answer, using the graph as evidence: This is not an accurate hypothesis. The graph shows that the levels of CO2 and temperature, over time, change at the same rate.

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"The earth hasn’t warmed in the last 100 years. In fact, global warming has stopped and a cooling period is beginning.”
Is the hypothesis true or false? false
Explain your answer, using the graph as evidence: the graph shows that as time has passed the average global temp has increased

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“The CO ₂ changes are normal! Levels of CO ₂ have changed drastically throughout history based on many different factors - the current high levels of CO ₂ just follow these natural patterns.”

Is the hypothesis true or false? False
Explain your answer, using the graph as evidence: While CO2 changes are normal and have changed drastically throughout history, the current levels of CO2 do NOT follow the natural patterns. The current level is at an all-time high that has never been seen throughout history.

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"CO ₂ is increasing naturally. There are many natural sources of CO ₂, including plant and animal respiration and volcanic eruptions. The human causes are minimal compared with the natural causes"

Is the hypothesis true or false? false
Explain your answer, using the graph as evidence: The human causes are much taller, signifying more damage. While in comparison, the natural causes are much shorter, signifying minimal effect.

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“Global warming is caused by Volcanic activity. It’s outside of our human control, so we should just enjoy life and not worry about it!"

Is the hypothesis true or false? False
Explain your answer, using the graph as evidence: _Net volcanic activity has been negative over the last 140 years, while temp has steadily increased.

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“The temperature change is caused by Cosmic Rays, not humans! There is a high correlation between the number of cosmic rays (produced by the sun) and the temperature on earth.”

Is the hypothesis true or false? False
Explain your answer, using the graph as evidence: The temperature change is PARTLY caused by cosmic rays. While up till 1980 there was a high correlation, but after 1980 there is a significant divergence between the two.

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Independent Variable: Time (year)

Dependent Variables: Global Co2, Mauna Loa CO2

How do the trends of the two dependent variables compare? _One is measuring the levels of CO2 is from Mauna Loa to the global CO2 levels.

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Independent Variable: contribution to global warming

Dependent Variable: % of the warming effect caused by this contributor.

What overall trend does the graph show in the % contribution to global warming based on the difference between human causes and natural causes? The contribution to global warming is mainly due to human causes.

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Independent Variable: time ( years before present)

Dependent Variable: Atmospheric CO2 levels

What overall trend does the graph show? there is a cycle of the CO2 levels increasing and decreasing

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Independent Variable: _time ( years before present)

Dependent Variables: CO2, temp

How do the trends of the two dependent variables compare? CO2 and temperature change at the same rate.

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Independent Variable: Time (year)

Dependent Variable: Temperature change (c)

What overall trend does the graph show? positive, as more time goes by, the average global temp increases

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Do not scroll further down past this point!

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Do not scroll further down past this point!