1, B. Reasons why global warming is a problem. (Những lý do khiến trái đất nóng lên là một vấn đề.)
2, D. Harder life as a result of global warming (“…Global warming will probably make life harder, not easier, for most people. This is mainly because we have already built enormous infrastructure based on the climate we now have.”)
3, D. Stable rainfall (“…But people in other areas will suffer from increased heat waves, coastal erosion, rising sea level, more erratic rainfall, and droughts.”)
4, A. Life is more difficult for the majority of people. (“…Global warming will probably make life harder, not easier, for most people”)
5, C. They will increase in number. (“The ranges of diseases and insect pests that are limited by temperature may expand…”