Changes

Green is also a term used to refer to environmentally friendly products and services, such as [[hydroelectric]] energy from dams, or paper towels made from recycled paper products. Green sources of power are seen as a method of securing energy independence for the United States, and as a way of protecting the environment from the negative impacts of burning fossil fuels.   

Green is also a term used to refer to environmentally friendly products and services, such as [[hydroelectric]] energy from dams, or paper towels made from recycled paper products. Green sources of power are seen as a method of securing energy independence for the United States, and as a way of protecting the environment from the negative impacts of burning fossil fuels.   

The color green corresponds to [[wavelength|wavelengths]] of 520 nanometers to 565 nanometers in the [[electromagnetic spectrum]].<ref>http://hyperphysics.phy-astr.gsu.edu/hbase/vision/specol.html#c1</ref>

The color green corresponds to [[wavelength]]s of 520 nanometers to 565 nanometers in the [[electromagnetic spectrum]].<ref>http://hyperphysics.phy-astr.gsu.edu/hbase/vision/specol.html#c1</ref>

== References ==

== References ==

{{reflist|2}}

{{reflist|2}}

[[Category: Colors]]

[[Category:Colors]]

[[category:Environmentalism]]

[[Category:Environmentalism]]