Answer:Of the many environmental and public health risks associated with burning fossil fuels, the most serious in terms of its universal and potentially irreversible consequences is global warming. In 2014, approximately 78 percent of US global warming emissions were energy-related emissions of carbon dioxide.
Explanation: this from google but i can you my answer... fossil fuels are a nonrenewable source. if we keep using them we will run out, and if we run out it will take millions of years to produce more.
ABove is my answer at the top is googles. brainlest please
