Fossils fuels and global Warming- is this really dangerous? What can be done to improve the situation?

Fossils fuels and global Warming- is this really dangerous? What can be done to improve the situation? 
The reason why I chose this topic is because Global Warming believe is one of the greatest threat facing our planet. Global warming is affecting the world at an alarming rate. A warming world also has the potential to change rainfall and snow patterns, increase droughts and severe storms, reduce lake ice cover, melt glaciers, increase sea levels, and change plant and animal behavior. Global Warming is a gradual increase in the overall temperature of the earth’s atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants. The more our atmosphere is heating up, the more it is changing our environment- Climate, weather, and natural resources that affects our survival and economic activity.