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| Name | The Science Behind Global Warming: The Mechanism of the Greenhouse Effect |
| Video Uploader | Video From Crash Chemistry Academy |
| Upload Date | This Video Uploaded At 09-08-2021 00:10:56 |
| Video Discription | This video gives an overview of the major factors involved in the warming of the earth as a result of increasing levels of greenhouse gases. Timing of specific topics: 0:00 Intro: What are global warming, climate change, greenhouse gases, fossil fuels; 3:15 Brief synopsis of how global warming occurs; 5:30 Radiant energy, temperature, and outgoing infrared (IR) emission from the earth versus incoming solar energy; 7:10 Understanding the earth energy balance (equilibrium) using the Stefan-Boltzmann Law and its relationship to the earth’s temperature; this section also introduces (9:35) the concept of albedo (amount of reflected solar energy); 14:10 What is the meaning of the calculated earth surface temperature and its relationship to the actual surface temperature; 15:55 Introduction to greenhouse gases; 19:15 An explanation of heat and its relationship to temperature; 21:05 What is the mechanism for greenhouse gases warming the earth: an explanation of how CO2 is able to absorb and generate infrared radiation, including CO2 vibrational frequencies and their connection to infrared frequencies; 24:25 Significance of CO2’s interaction with infrared: the redistribution of infrared emitted by the earth; 25:55 Relevant features of the atmosphere, tying that back to CO2’s interaction with infrared; 27:15 What is emission height? Its significance to global warming: the consequences of changing emission height via increased CO2 concentration, and its relationship to the earth energy equilibrium; 32:40 An explanation of ‘radiative forcing’, the imbalance between earth’s emitted energy and absorbed solar energy; 35:20 The role of water vapor as a greenhouse gas: the feedback mechanism between water vapor levels and the earth’s temperature, and the feedback between increasing CO2 levels and water vapor level; 39:40 What is the specific mechanism for increasing the earth’s temperature; 41:30 Why does the very tiny proportion of CO2 in the air have such a large impact on temperature? 42:55 Why is a 1C temperature change so significant: a few examples of the effect of increasing temperature on climate. Sources: Many thanks to Professor Jack Scheff, Dept of Geography and Earth Sciences, University of North Carolina Charlotte, for much help and guidance. https://pages.uncc.edu/hcl/ The Intergovernmental Panel on Climate Change. https://www.ipcc.ch/report/ar5/wg1/ National Oceanographic and Atmospheric Administration. https://www.noaa.gov/ Climate Change: The Science of Global Warming and Our Energy Future, 2nd Ed., by E.A. Mathez and J.E. Smerdon http://cup.columbia.edu/book/climate-change/9780231172837 American Chemical Society. https://www.acs.org/content/acs/en/climatescience/greenhousegases/properties.html National Aeronautics and Space Administration. https://climate.nasa.gov// 8Ukxv5-pwlg |
| Category | Education |
| Tags | Education Download MP4 | Education Download MP3 | Education Download MP4 360p | Education Download MP4 480p | Education Download MP4 720p | Education Download MP4 1080p |
