Understanding global warming – The greenhouse effect and climate change
The heat radiated by Earth does not reach outer space unimpeded; some of it is absorbed and reflected in Earth’s atmosphere. Without this effect, we would be living in a permanent ice age on Earth.
Information and ideas:
• The exact physical facts are not covered yet in grades 7 and 8. Therefore, teachers can delete all the information on radiation equilibrium and radiation absorption of molecules from the end of the Word version of the information sheet.
• Teachers can have their students look for possible ways of reducing the anthropogenically intensified greenhouse effect in the short, medium, or long term. Political, economic, and personal aspects can be discussed separately.