What are the missing letters? Complete the sentences using the pictures to help you. The first sentence is done for you.
1. Black carbon contributes to global warming.
2. World leaders agreed on reducing CO2 em _________ ending def _________ at the COP.
3. The burning of fos _____ _______ has increased the amount of gre______ ________ in the earth's atmosphere.
2. emission / deforestation
3. fossil fuels / greenhouse effects
2. emission - deforestation
3. fossil fuels - greenhouse effects