4. Work in groups. Decide which human activity contributes to global warming the most. Report to the whole class.
(Làm việc nhóm. Quyết định hoạt động nào của con người góp phần vào sự nóng lên toàn cầu nhiều nhất. Báo cáo với cả lớp)
Bài Làm:
Group discussion:
Member 1: In my opinion, burning fossil fuels is the human activity that contributes the most to global warming. When we burn coal, oil, and gas, they release large amounts of carbon dioxide into the atmosphere, which traps heat and leads to global warming.
Member 2: I agree that burning fossil fuels is a major contributor to global warming, but I think that raising farm animals is just as significant. The methane produced by these animals is responsible for nearly one-third of current global warming.
Member 3: I think cutting down or burning forests is the most serious problem. Deforestation leads to more carbon dioxide in the air, and forests store carbon in the trees and soil, which helps reduce global temperature. When forests are cut down, the carbon is released into the atmosphere, which contributes to global warming.
Member 4: I think all these activities are significant contributors to global warming, but I believe that burning fossil fuels is the most damaging. It not only releases carbon dioxide but also other harmful pollutants that affect air quality and human health.
Group Conclusion:
After considering each member's opinion, the group has concluded that burning fossil fuels is the human activity that contributes the most to global warming. However, they acknowledge that other activities such as raising farm animals and deforestation are also significant contributors to global warming and need to be addressed.