By Mike Walsh, Kyle Didier, Tyler Watson, and Dan Skiroock Location- All over the world countries depend on the use of fossil fuel energy for things like electricity, transportation, and the heating and cooling of homes and buildings What is the problem?- Countries all over the world are dependent on fossil fuels. For example, the U.S. uses fossil fuels for more than 85% of all energy used in the U.S. Why is it a problem?- Humans are consuming non-renewable fossil fuels at a much faster rate than they are being produced by the slow process of making fossil fuels. Humans are increasingly dependent on a shrinking supply of fossil fuels What is the ecological impact?- In the U.S., the burning of fossil fuels is responsible for more than 90% of greenhouse gas emissions. The increasing concentrations of greenhouse gases contribute to global warming. The burning of fossil fuels also releases other air pollutants, like sulfuric, carbonic, and nitric acids which fall on the earth as acid rain. How have humans specifically caused this ecological problem?- Humans have caused this problem by their burning of massive amounts of fossil fuel, this burning of which is releasing large amounts of greenhouse gas and other air pollutants. Alternative Sources of Energy- Alternative energy sources are sources of energy that don’t have the undesired effects of energy sources like fossil fuels. Alternative energy sources are renewable and have lower carbon emissions compared to conventional energy sources. Examples include, biomass energy, wind energy, solar energy, geothermal energy, and hydroelectric energy. Cutting Down on Amounts- Another solution is that we can cut down on the amount of fossil fuels that we use. For one we can cut down oil dependency by carpooling or riding our bikes to get places. Also we can use less electricity, which would cut down on using fossil fuels to create that electricity. We can do this by, turning off lights and other electronics when we leave a room. We can also choose not to use air conditioners, by opening windows when it is warm in our houses. Finally, we can better insulate homes so that we won’t have to use natural gas to heat homes. In our opinion the use of alternative sources of fuel is the best solution. Cutting down the use of fossil fuels lessens the problem, but it does not solve it. We would still be putting pollutants in the air and using up the shrinking supply of fossil fuels. Switching to a new, renewable fuel source would solve the problem of a depleted fuel source, and would also greatly reduce the amount of greenhouse emissions, which would help lessen the impact of global warming.