Now, we are interested in what you know about climate change. Please answer the following questions to your best knowledge. 

 

The definition of „climate change“ refers to the more recent global changes of the climate during the latest 250 years (since the industrialization) – and not to climate fluctuations during the total history of the earth (such as glacial and heating periods).

 

We now present you several statements regarding climate. Please indicate for each item, whether you believe the item is true or false.  

If you are unsure, please tick don’t know. - Display Order - The ozone hole is the main cause of the greenhouse effect.

Now, we are interested in what you know about climate change. Please answer the following questions to your best knowledge. 

 

The definition of „climate change“ refers to the more recent global changes of the climate during the latest 250 years (since the industrialization) – and not to climate fluctuations during the total history of the earth (such as glacial and heating periods).

 

We now present you several statements regarding climate. Please indicate for each item, whether you believe the item is true or false.  

If you are unsure, please tick don’t know. - Display Order - At the same quantity, CO<sub>2</sub> is more harmful to the climate than methane.

CC.know.causes - The global CO2 concentration in the atmosphere has increased during the past 250 years.

CC.know.causes - Climate change is mainly caused by human activities.

CC.know.causes - With a high probability, the increase of CO2 is the main cause of climate change.

CC.know.causes - Climate change is mainly caused by natural variations (such as changes in solar radiation intensity and volcanic eruptions).

CC.know.causes - The last century's global increase in temperature was the largest during the past 1000 years.

CC.know.causes - The 90s were globally the warmest decade during the past century.

CC.know.causes - Today's global CO2 concentration in the atmosphere already occurred in the past 650,000 years.