Peak coal is the point in time at which the maximum global coal production rate is reached, after which, according to the theory, the rate of production will enter to a terminal decline. Coal is a fossil fuel formed from plant matter over the course of millions of years. It is a finite resource and thus considered to be a non-renewable energy source.
There are two different peaks: one measured by mass (i.e. metric tons) and another by energy output (i.e. petajoules). The energy output per mass has dropped significantly since 2000, so the energetic peak will come much sooner than the mass peak.
The estimates for global peak coal extraction vary wildly. Many coal associations suggest the peak could occur in 200 years or more, while scholarly estimates predict the peak to occur as soon as the immediate future. Research in 2009 by the University of Newcastle in Australia concluded that global coal extraction could peak sometime between the present and 2048. Global coal reserve data is generally of poor quality and is often biased towards the high side. Collective projections generally predict that global peak coal extraction may occur sometime around 2025 at 30 percent above current extraction.
Read more about Peak Coal: Hubbert's Theory, Peak Coal For Individual Nations, World Peak Coal, See Also
Famous quotes containing the words peak and/or coal:
“In the mountains the shortest route is from peak to peak, but for that you must have long legs. Aphorisms should be peaks: and those to whom they are spoken should be big and tall of stature.”
—Friedrich Nietzsche (1844–1900)
“In those days, the blag slag, the waste of the coal pits, had only begun to cover the side of our hill. Not enough to mar the countryside nor blacken the beauty of our village. For the colliery had only begun to poke its skinny black fingers between the green.”
—Philip Dunne (1908–1992)