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en.wikipedia.org/wiki/Fossil_fuel

A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried ... The use of fossil fuels raises serious environmental concerns.

needtoknow.nas.edu/energy/energy-sources/fossil-fuels

But shifting to new energy sources will take time. In the meantime, how do we use fossil fuels in the most efficient and environmentally responsible way possible ...

instituteforenergyresearch.org/topics/encyclopedia/fossil-fuels

Coal was the first of the fossil fuels to go into widespread use, displacing low- energy firewood as the leading source of fuel in the US, and triggering the country's ...

www.mhi.com/discover/earth/issue/history/history.html

This section first provides an overview of how fossil fuels became the main sources of energy from the Industrial Revolution onward, and then explains the ...

www.ucsusa.org/clean-energy/coal-and-other-fossil-fuels/hidden-cost-of-fossils

Aug 30, 2016 ... Fossil fuels are rock-like, gas, or liquid resources that are burned to generate power. They include coal, natural gas, and oil, and are used as an ...

www.eia.gov/todayinenergy/detail.php?id=26912

Jul 1, 2016 ... Three fossil fuels—petroleum, natural gas, and coal—have provided more than 80% of total U.S. energy consumption for more than 100 years.

www.britannica.com/science/fossil-fuel

Fossil fuel, any of a class of hydrocarbon-containing materials of biological origin occurring within Earth's crust that can be used as a source of energy.

data.worldbank.org/indicator/EG.USE.COMM.FO.ZS

Fossil fuel energy consumption (% of total) from The World Bank: Data.

www.forbes.com/sites/rrapier/2016/06/08/world-sets-record-for-fossil-fuel-consumption

Jun 8, 2016 ... Despite a record increase in renewable energy use in 2015, and a drop in coal consumption, a rise in oil demand drove overall fossil fuel ...