The Greenhouse Effect

The Greenhouse Effect

PhET Simulation:

In this video Paul Andersen explains how the greenhouse effect and greenhouse gases keep our planet warm enough to be habitable. He explains how greenhouse gases keep heat closer to the surface. He finally shows how increases in greenhouse gases may lead to dangerous global warming.

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Music Attribution
Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:
balin, jean victor. Cartoon Cloud, December 2, 2009. [1].
Dbc334. English: Molecule of Methane., October 24, 2006. Own work.
Duke, Eli. Tour of the Drilling Facility, December 1, 2012. Flickr: Antarctica: WAIS Divide Field Camp.
Edgar181. 3D Representation of Carbon Dioxide Created with ChemDraw., [object HTMLTableCellElement]. Edgar181.
File:GISP2 1855m Ice Core Layers.png, n.d.
“File:Top of Atmosphere.jpg.” Wikipedia, the Free Encyclopedia, April 15, 2014.
“File:Trichlorofluoromethane-3D-vdW.png.” Wikipedia, the Free Encyclopedia. Accessed April 17, 2014.
Ito, Joi. English: “Ichigogari”: Strawberry Greenhouse, February 16, 2008. originally posted to Flickr as Strawberry greenhouse.
mehmetaergun. Africa-Centered, “Upside-down” Earth, May 1, 2007. Own work.
Mills, Ben. Space-Filling Model of Nitrous Oxide, N2O, July 30, 2007. Own work.
———. Space-Filling Model of the Ozone Molecule, O3., May 27, 2009. Own work.
“The Greenhouse Effect.” PhET. Accessed April 17, 2014.
work, Own. English: Structure of the Water Molecule (H2O), August 2008. Based in part on the public domain image Image:H2O (water molecule).jpg by Solkoll. Corrected by Plenz.
———. English: Structure of the Water Molecule (H2O), August 2008. Based in part on the public domain image Image:H2O (water molecule).jpg by Solkoll. Corrected by Plenz.

20 thoughts on “The Greenhouse Effect”

  1. I would strongly encourage Mr. Anderson to consider his usage of "radiation" and "heat" which are not the same (but can be converted from one to the other). I would encourage anyone watching this video to find videos about light absorption, the definition of heat and atomic spectra to get a more fundamental picture of what is happening.

  2. Why do the atmospheric molecules H2O, CO2, CH4 absorb infrared photons whereas N2 and O2 do not? I've heard it has something to do with the fact that H2O, CO2, CH4 are asymmetric molecules. But what exactly is the technical explanation of this?

  3. I'm making a solar oven in school and was wandering how the heat stayed in the box and this helped.

  4. Good job man, you are really helpful and you make it all so clear! I appreciate the help and keep up the good vids

  5. Thank you soooo much for posting your videos. It has done wonders in helping me understand science!!!! Thanks again!

  6. You should have pointed out that the incoming solar energy is running at a much higher frequency than the outbound, so it interacts differentially with atmospheric gasses.

  7. Activity of man adds to the water vapor; irrigation, deforestation and combustion releases a lot of that greenhouse gas.

  8. Some people will reject science, evidence, even logic, to hang on to their beliefs. Religious and political faith bases thinking is so wrong.

  9. The image of the Earth shown within the first minute is upside down.  Was this a political view, or does your graphic artist need a geography lesson?  It also seems that some of your material is unfounded speculation and leans a little to a certain point of view.  I'm a little mad that my school used this video as a reference.

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