II. Write the word COLD if the statement prevents global warming and the word HOT if the
statement causes global warming.
21. Reduce, reuse, recycle.
22. The use of fossil fuel for electricity generation.
23. Intensive farming and agriculture.
24. Tree planting and reforestation.
25. Earth hour participation.
26. Unplugging appliances when not in use.
27. Charging cellphones.
28. Carpooling and the use of public transportation.
29. Throwing garbage in the landfills.
30. Deforestation and conversion of land for residential use.
31. The use of renewable sources of energy.​