Answer the following questions: The diagram given below depicts the climate change on planet Earth. The poster reads: "THE CLIMATE IS CHANGING — WHY AREN’T WE?"

What measure can be taken to prevent this climate change?
Topic: Measures to prevent climate change
Answer
AFFORESTATION — planting more trees, which absorb carbon dioxide and release oxygen. (Also acceptable: reducing the use of fossil fuels by switching to solar, wind and other renewable sources; using public transport and CNG vehicles; saving electricity.)
One measure, stated concretely. Vague good intentions ("we should protect the environment") earn nothing.
Note that the measures fall into two kinds, and naming which kind you are giving shows understanding: REDUCE the emission — renewable energy, public transport, saving electricity REMOVE what is already there — afforestation, since trees take carbon dioxide out of the air
The poster in the question ("The climate is changing — why aren’t we?") is asking for individual action, so an answer about what YOU can do is well judged.