Changes

* [[Lignite]] - also known as "brown coal", is the dirtiest burning, and is mainly used in power generation.  The top two locations for lignite mining are [[Germany]] and [[Russia]].   

* [[Lignite]] - also known as "brown coal", is the dirtiest burning, and is mainly used in power generation.  The top two locations for lignite mining are [[Germany]] and [[Russia]].   

[[Graphite]], used in [[pencil]]s and as an electrical conductor, is not a type of coal, is if formed during the metamorphism of carbon rich sediments, such as coal streams, it is not used commercially as a fuel since it is hard to ignite.

[[Graphite]], used in [[pencil]]s and as an electrical conductor, is technically a type of coal of an even higher grade than anthracite, but is not used as a fuel as it is hard to ignite.

== Origins ==

== Origins ==

[[Image:Coal_contact_line.jpg|thumb|coal sitting on clay, with no evidence of soil, which was not required for the growth of coal swamps]]

[[Image:Coal_contact_line.jpg|thumb|coal sitting on clay, with no evidence of soil]]

[[Young earth creationists]] believe that most coal was formed during the [[Great Flood]] <ref>Jackson, 2006</ref>.

[[Young earth creationists]] believe that most coal was formed during the [[Great Flood]] <ref>Jackson, 2006</ref>.

In support of this, they point out:<ref>Walker, 2001</ref>

In support of this, they point out:<ref>Walker, 2001</ref>

Secular scientists propose that coal formation took long periods of time, with the most recently-formed coal being formed a million years ago.<ref name="ACF">[http://www.ket.org/Trips/Coal/AGSMM/agsmmhow.html How Coal Is Formed] American Coal foundation.</ref>

Secular scientists propose that coal formation took long periods of time, with the most recently-formed coal being formed a million years ago.<ref name="ACF">[http://www.ket.org/Trips/Coal/AGSMM/agsmmhow.html How Coal Is Formed] American Coal foundation.</ref>

They generally propose that the plant material accumulated in swamps with the greatest amount of coal deposition taking place in the Carboniferous (Mississippian and Pennsylvania) around 340 Million years ago <ref name="ACF" />

They generally propose that the plant material accumulated in swamps<ref name="ACF" />

==see also==

==see also==