1. Greenhouse Effect
scientists don't know for sure what global warming will bring. Some changes brought about by global warming will be good. ... Global warming may make the sea level become higher. warmer weather makes glaciers melt. ... Global warming may make the Earth warmer in cold places. ... But global warming also might bring droughts to other places where we grow crops. ...
- Word Count: 3240
- Approx Pages: 13
- Grade Level: Undergraduate