Over the last one hundred years global temperature has increased between 0.6 and 1.1 degrees Fahrenheit, glaciers over the world have decreased in size and worldwide sea level has risen 10 to 20 centimeters. (Global Warming Opposing Viewpoints) Are these changes due to human behavior or natural causes? Is global warming a threat to the world environment? Global warming is a complex issue where scientists on both sides of the subject have a valid point of view. The green …showed first 75 words of 1375 total…

…showed last 75 words of 1375 total…some cases, it only takes a little change in lifestyle and behavior to make some big changes in greenhouse gas reductions. Global warming is a threat to the environment and actions must be taken to learn more and help prevent global warming. If people don’t start to take action soon enough it will be to late. Even small things can make a difference, so take action now and save the world from global warming.