Changes

''For the [[liberal]] hoax about climate, see [[global warming]]''.

''For the [[liberal]] hoax about climate, see [[global warming]]''.

'''Energy''' is the ability to do work.<ref>Wile, Dr. Jay L. ''Exploring Creation With [[Chemistry]]''. Apologia Educational Ministries, Inc. 1998</ref>  In [[physics]], energy is a conserved quantity, and a closed system of interacting particles is known to always have the same value for its energy; this is known as the law of conservation of energy.<ref>Halliday, Resnick, Walker: '' Fundamentals of Physics'', 6th Edition</ref> The SI unit of energy is [[joule]]. Energy can be converted into various forms like [[Potential energy]], [[Kinetic energy]] and Thermal energy (see below for more).  

'''Energy''', in politics, means affordable sources of transportation, heating and cooling, and electricity.

 

In science, energy is the ability to do work.<ref>Wile, Dr. Jay L. ''Exploring Creation With [[Chemistry]]''. Apologia Educational Ministries, Inc. 1998</ref>  In [[physics]], energy is a conserved quantity, and a closed system of interacting particles is known to always have the same value for its energy; this is known as the law of conservation of energy.<ref>Halliday, Resnick, Walker: '' Fundamentals of Physics'', 6th Edition</ref> The SI unit of energy is [[joule]]. Energy can be converted into various forms like [[Potential energy]], [[Kinetic energy]] and Thermal energy (see below for more).  

More generally, energy is a source of usable heat or power.  [[Nobel Prize]]-winning [[Economics|economist]] [[Milton Friedman]] observed that energy is the “lifeblood of our economic system.”

More generally, energy is a source of usable heat or power.  [[Nobel Prize]]-winning [[Economics|economist]] [[Milton Friedman]] observed that energy is the “lifeblood of our economic system.”