the air quality in this city is horrendous ! The pollution levels were so high that we weren't supposed to go outside with a face mask again !   exhaust fumes from vehicles cause a great deal of damage to the environment .   on top of that , there are a few large chemical factories in the suburbs , which are contributing to the high pollution levels in the water and the air in this city .   as much as I love this city , I think I'm going to have to find a greener city to live in . Living in a polluted city like this just can't be good for my health .   I know what you mean . However , there are so few places left that have not been affected by global warming . If it's not the pollution , then it's the natural disasters , deforestation , or the greenhouse   what is the greenhouse effect exactly ?   it's the gradual rise in the earth's temperature .   I see , so it's similar to global warming ?   they're related to one another , yes .   I heard that some people in England are pleased with the fact that the climate is becoming warmer because it's making their towns a more pleasant place to live .   people joke about the benefits of the increase in temperature , but it's not all good news . They've been experiencing a lot of deadly storms there as well .   people always seem to make jokes as a way to deal with unfortunate situations .   I think if everyone pitches in , the world will be a better place . 