Global warming is a serious threat to the future of life on our planet.
Global warming is the main cause for our drastic changes in temperature.
Save earth, Save life...Stop global warming.
A good topic sentence for global warming depends on what the article or paper is about. Determine what you plan to discuss in your paper and a topic sentence will come easily.
subhash chandrabose
Mutatis mutandis about global warming.
global warming is ruining the world and its environment
askjeeves.com
Global Warming.
The presidents campaign promised to end global warming.
caution global warmng at work
global warming!!!!!!
Polar bears are amphibians, so global warming doesn't matter.