| A | B |
|---|
| humanity | every man, woman, and child |
| greenhouse gas | gases that contribute to global warming |
| matched by | equal to or the same as |
| critical stage | a point of time when a serious problem worsens even more |
| excessive | much more than normal |
| natural disaster | an event of nature, such as an earthquake or flood, that causes serious damage |
| endangered species | a type of plant or animal that may soon disappear |
| extinct species | a type of plant or animal that no longer exists |
| environmental refugee | a person forced to leave his or her home because of environmental problems |
| regulation | a rule or law made by a city,state, or nation |
| business practice | the action of a company |
| lifestyle | the routines or habits of a group of people |
