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Environmental Systems


Environmental Systems

002 - Environmental Systems

Biological Molecules:

In this video Paul Andersen explains how matter and energy are conserved within the Earth's system. Matter is a closed system and Energy is open to the surroundings. In natural systems steady state is maintained through feedback loops but can be be affected by human society.

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Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound:
Creative Commons Atribution License

Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:

2006, Photo by Johntex. English: Man Sitting under Beach Umbrella., February 18, 2006. Johntex.
“Circular Graphic of Business Cycle or Circuit - Free Business Icons.” Flaticon. Accessed August 23, 2015.
College, OpenStax. English: Illustration from Anatomy & Physiology, Connexions Web Site. Jun 19, 2013., May 16, 2013. Anatomy & Physiology, Connexions Web site. Jun 19, 2013.
DePiep. English: Category Colors according to - Diatomic Nonmetals. See En:wp., August 14, 2013. Own work.
DynaBlast. Covalently Bonded Hydrogen and Carbon in a W:molecule of Methane., January 28, 2006. Created with Inkscape.
Eastland, Jessie. English: Sunset, Joshua Tree California, USA., July 20, 2012. Own work.
Ebaychatter0. English: Sport Car, October 3, 2012. Own work.
France, Chad Teer from Coquitlam. Offshore Platform Located in the Gulf of Mexico, Port Location Cd. Del Carmen., October 22, 2004. - image description page.
“Gasoline.” Wikipedia, the Free Encyclopedia, August 19, 2015.
English: A Colored Emoji from Emojione Project, [object HTMLTableCellElement].
“James Prescott Joule.” Wikipedia, the Free Encyclopedia, July 29, 2015.
Kulenov, Zhanat. English: The Aral Sea Is Drying Up. Bay of Zhalanash, Ship Cemetery, Aralsk, Kazakhstan, April 11, 2006. UNESCO.
“Lake.” Wikipedia, the Free Encyclopedia, August 21, 2015.
MODIS, NASA images by Reto Stöckli, based on data from NASA and NOAA Instrument: Terra-. Polski: Mozaika Zdjęć Półkuli Zachodniej, Zrzutowana Na Sferę I Poddana Obróbce., October 2, 2007. Earth Observatory: Twin Blue Marbles.
“Molecular Configuration - Free Education Icons.” Flaticon. Accessed August 22, 2015.
Producercunningham, NASA Collage by. English: A Comparison of the Aral Sea in 1989 (left) and 2014 (right)., September 30, 2014. 1989: aral sea 1989 250m File:Aralsea tmo 2014231 lrg.jpg.
“Recycle Reuse - Free Arrows Icons.” Flaticon. Accessed August 22, 2015.
Roscoe, Henry. Picture of James Joule, 1906. The Life & Experiences of Sir Henry Enfield Roscoe (Macmillan: London and New York), p. 120.
Wikipedia, The original uploader was Adz at English. Daintree Rainforest. Photo Taken June 2005. Uploaded with Permission., August 13, 2005. Transferred from en.wikipedia to Commons.

Lecture 1-Principles of Energy Balance in Environmental Systems

Lecture 1 of 7 in the principles of energy balance in environmental systems lecture series.
Lecture covers:
1. Introduction: The magnitude of water use in agriculture
2. The challenge of measuring water use and evapotranspiration
3. Reference books on environmental physics
4. First law of thermodynamics: energy in equals energy out
5. The seven components of the energy balance equation
6. The magnitude of latent heat of evaporation
7. Understanding energy and power
8. Shortwave and longwave radiation
9. E = mc2 homework
All lectures and handouts can be found at

Environmental Science

001 - Environmental Science

In this video Paul Andersen outlines the AP Environmental Science course. He explains how environmental science studies the interaction between earth and human systems. A planetary boundary model is used to explain the importance of sustainability. The importance of science practices and knowledge of the APES format is also included.

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Music Attribution

Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound:
Creative Commons Atribution License

Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:
“Aldo Leopold Trip to the Rio Gavilan.” Flickr - Photo Sharing!. Accessed August 19, 2015.
Cline, Mike. East Gallatin River Near Belgrade, Montana October 2007, October 2007. Own work.
“Easter Island.” Wikipedia, the Free Encyclopedia, August 4, 2015.
“File:DDT Powder.jpg.” Wikipedia, the Free Encyclopedia, April 28, 2015.
“File:Deepwater Horizon.jpg.” Wikipedia, the Free Encyclopedia, June 19, 2013.
“File:Silent Spring Book-of-the-Month-Club edition.JPG.” Wikipedia, the Free Encyclopedia, October 6, 2012.
Filutowska, Zuzanna K. Polski: Laboratorium Pracowni Technik Biologii Molekularnej Na Wydziale Biologii Uniwersytetu Adama Mickiewicza W Poznaniu, March 6, 2012. Own work.
“Gifford Pinchot.” Wikipedia, the Free Encyclopedia, August 17, 2015.
Janwikifoto. Johan Rockström, at the Nobel Laurate Globalsymposium 2011, at Vetenskapsakademien in Stockholm, Discussing Climate Change, May 17, 2011.
“John Muir.” Wikipedia, the Free Encyclopedia, August 10, 2015.
Mueller, Felix. English: Planetary Boundaries according to the Paper by Rockström et Al. Published in Nature 2009. The Red Areas Represent the Estimated Current State with the Inner Green Circle Being the Estimated Boundaries., November 8, 2014. Own work.
pl.wikipedia, Original uploader was Marcin Otorowski at. English: So Called “New Matura” from Polish Language in the 1st Liceum Ogólnokształcące in Szczecin, Poland, May 13, 2005. Transferred from pl.wikipedia, genuine source:[1] Polski: jestem autorem strony i mam prawo do zdjęć. Zdjęcie wykonał: Oskar Błaszkowski.
Sevice, Rex Gary Schmidt/U S. Fish and Wildlife. English: Robert W. Hines and Rachel Carson on the Atlantic Coast., [object HTMLTableCellElement]. See Category:Images from the United States Fish and Wildlife Service.
“The Blue Marble.” Wikipedia, the Free Encyclopedia, May 12, 2015.
“TI-83 Series.” Wikipedia, the Free Encyclopedia, April 5, 2015.
Underwood, Underwood &. U.S. President Theodore Roosevelt (left) and Nature Preservationist John Muir, Founder of the Sierra Club, on Glacier Point in Yosemite National Park. In the Background: Upper and Lower Yosemite Falls., Copyright 1906.
Unknown. English: Platform Supply Vessels Battle the Blazing Remnants of the off Shore Oil Rig Deepwater Horizon.

Lecture 3-Principles of Energy Balance in Environmental Systems

Lecture 3 of 7 in the principles of energy balance in environmental systems lecture series.
Lecture covers:
1. The concept of emissivity
2. Calculating long wave emitted
3. Calculating net longwave radiation
4. Calculating net absorbed short and longwave radiation
All lectures and handouts can be found at

Lecture 2-Principles of Energy Balance in Environmental Systems

Lecture 2 of 7 in the principles of energy balance in environmental systems lecture series.
Lecture covers:
1. Key for homework: units conversion Calories v. calories
2. Calculating the efficiency of photosynthesis
3. Calculating absorbed shortwave radiation – importance of albedo
4. The three components of shortwave radiation
5. Definitions of shortwave and longwave radiation
6. The Stefan-Boltzman Law for longwave radiation
All lectures and handouts can be found at

My Career & Education - should you get an environmental science degree?

This has been a highly requested video over the past several months so I wanted to address all of things I could think of. If you have any other specific questions - ask in the comments (:

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Earth and Environmental Science | Careers, Concentrations, and Courses

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Part 2:

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This video covers the Earth and Environmental science major and places an emphasis on earth science, soil science, geology, and hydrology. The Earth and Environmental Science major is a broad major that allows students a lot of flexibility in pursuing topics that most interest them.

In this video, you will be given an introduction to the major, and learn that Earth Science combines many fields into a unified physical science that covers topics such as the atmosphere, climate, ecology, soil science, environmental earth sciences, some aspects of geology, geophysics, plate tectonics, and hydrology.

This video will give you an introduction to the Earth Science major and will give you a brief overview of the courses and applications for Earth Science. Be sure to stick around and continue onto part two.

Environmental Economics

021 - Environmental Economics

In this video Paul Andersen explains how economic models, like supply and demand, can be applied to environmental systems. The market forces will not protect environmental services until proper valuation and externalities are established. The wealth of a nation can be more accurately measured through the sustainability of the economic model.

Do you speak another language? Help me translate my videos:

Music Attribution

Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound:
Creative Commons Atribution License

Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:
balin, jean victor. (2009). Cartoon cloud. Retrieved from
Contrast, H. (2008). Deutsch: Eine Fabrik in China am Ufer des Jangtse.English: A Factory in China at Yangtze River.Euskara: Landare industrialen ondoriz, aire kutsakorra.Nederlands: Industrie langs de Yangtse rivier in China. Retrieved from
EPA. (2008). English: Diesel smoke from a big truck. Retrieved from
Evans, N. 17 crew; taken by either H. S. or R. (1972). العربية: صورة الكرة الزرقاء الشهيرة التي تعتبر أول صورة لمنظر الارض الكامل. إلتقطت الصورة في 7 ديسمبر 1972. Retrieved from
Factory by Anonymous. (n.d.). Retrieved from
Gizlog. (2011). English: Sigmund Freud Bobble Head/Wackelkopf. Retrieved from
Zifan, A. (2015). English: Countries by GDP (PPP) per capita in 2014, based on data from the International Monetary Fund. Retrieved from

Advice from an Environmental Engineer PhD at UCLA

Do you want to become an environmental engineer, or get a PhD? Curious about what courses should you take to give you a competitive edge when applying for jobs and graduate school? What goes into applying and getting into grad school? What does the daily life of a Graduate Engineering student look like?

UCLA PhD candidate Alex Polasko sits down with Working in Science to talk all things environmental engineering and give some advice to aspiring environmental engineers.

Alex loves the interdisciplinary nature of the environmental engineering field. Her research focuses on ground water and using bacteria to clean the water and tap into our existing resources in a sustainable and green way. Alex uses bacteria in her research and works in a wet lab.

She does interdisciplinary research and collaboration with other researchers in the earth sciences fields. Participating in internship programs and working in a lab and as an intern helped to inform her decision to go to graduate school.

Looking to find someone to talk to in environmental engineering or get some questions answered? Leave a comment on this video!

You can also reach out to Alex Polasko directly at or on Facebook at

Watch Alex's Passion in Science Award Talk!

Discover More About Alex Polasko:

PhD Student, Alexandra Polasko, Receives 2015 Len Assante National Groundwater Scholarship:

Article: Inside the Heart and Mind of Alex Polasko:

Read Alex's Senior College Thesis from UC Berkley:
Sulfide Inhibition Effect on Dehalococcoides Strain 195’s Ability to Biodegrade Trichloroethene and Desulfovibrio vulgaris Hildenborough’s Cell Growth

Alex's Other Research Work:

What is Environmental Science? Definition and Scope of the Field

Visit for thousands more videos like this one. You'll get full access to our interactive quizzes and transcripts and can find out how to use our videos to earn real college credit.
YouTube hosts only the first few lessons in each course. The rest are at Take the next step in your educational future and graduate with less debt and in less time.

Lecture 4-Principles of Energy Balance in Environmental Systems

Lecture 4 of 7 in the principles of energy balance in environmental systems lecture series.
Lecture covers:
1. Understanding the radiation balance on Earth
2. Differential absorption of Shortwave radiation
3. Reflectance of longwave radiation
4. Wein’s Law
5. Planck’s Equation
All lectures and handouts can be found at

HOW TO GET A 5: AP Environmental Science

Resources are below in the description! I hope you liked this video about how to get a 5 on AP environmental science! In the beginning of the video I give a brief overview of the class, and then I talk about which resources to use and some strategies you can use to prepare for the exam. Good luck if you're taking the exam this year!
APES Resources:

Introduction to Environmental Science | Study of Environment | Environment Study | EVS | Letstute

Hey Guys,
In this video, on Introduction to Environmental Science | Study of Environment we will learn about Environment studies (EVS) by Letstute.

In this session we will learn about:
1) Environment
2) Components of Environment
3) Environmental Science
4) Lithosphere,Hydrosphere and Atmosphere.
5) Natural Resources
6) Environmental Degradation

I hope you will enjoy this session on Introduction to Environmental Science - EVS on Let's tute

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Source: article, adapted under license.

Environmental systems analysis (ESA) is a systematic and systems based approach for describing human actions impacting on the natural environment to support decisions and actions aimed at perceived current or future environmental problems. Impacts of different types of objects are studied that ranges from projects, programs and policies, to organizations, and products. Environmental systems analysis encompasses a family of environmental assessment tools and methods, including life cycle assessment (LCA), material flow analysis (MFA) and substance flow analysis (SFA), and environmental impact assessment (EIA), among others.

ESA studies aims at describing the environmental repercussions of defined human activities. These activities are mostly effective through use of different technologies altering material and energy flows, or (in)directly changing ecosystems (e.g. through changed land-use, agricultural practices, logging etc.), leading to undesired environmental impacts in a, more or less, specifically defined geographical area, and time, ranging from local to global. The basis for the analytical procedures used in ESA studies is the perception of flows of matter and energy associated to causal chains linking human activities to the environmental changes of concern. Some methods are focusing different parts or aspects of the energy/matter flows or the causal chains, where flow models like MFA or LCA deals with the more or less human controlled societal flows while, e.g. ecological risk assessment (ERA) is related to disentangling environmental causal chains. Environmental systems analysis studies has been suggested to be divided between full and attributional approaches. The full mode covers identified material and energy flows and associated processes leading to environmental impacts. The attributional approach, on the other hand, is based on an analysis of the processes needed to fulfil a certain purpose such as the function that a product delivers. The combination of methods (e.g. LCA and environmental risk assessment) has also been of interest

Methods can be grouped into procedural and analytical approaches. The procedural ones (e.g. EIA or strategic environmental assessment, SEA) focus on the procedure around the analysis, while the analytical ones (e.g. LCA, MFA) put the main focus on technical aspects of the analysis, and can be used as parts of the procedural approaches. Regarding the impacts studied, the environmental issues cover both effecs of natural resource use and other environmental impacts, e.g. due to emissions of chemicals, or other agents. In addition, environmental systems analysis studies can cover or be based on economic accounts (life cycle costing, cost-benefit analysis, input-output analysis, systems for economic and environmental accounts), or consider social aspects. The objects of study are distinguished into five categories.

APES - Chapter 2 Environmental Systems

A look at basic chemistry and physics topics for the APES course.

Humans and the Environment | Essentials of Environmental Science

Welcome to our new special series about the essentials of environmental science
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What is “the environment”? Well, it’s everything, and it’s everywhere, including you and me. Just about every part of human civilization depends on a healthy and stable environment. Yet, human activity is causing pollution, climate change, and species loss, all of which disrupt that health and stability. So how do we study our environment in order to understand these changes and how we might fix them? That’s the purpose of environmental science.

Welcome to our new Learning series about the essentials of environmental science. We’ll have more from this series in the following videos, so stay tuned!

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Socio-Environmental Systems By Design

Socio-Environmental Systems by Design assessed outcomes of engineered landscapes and intentional efforts to alter, manage, or direct the structure and functioning of socio-environmental systems. It involved ​governance, urban planning, infrastructure, environmental justice, synthetic biology solutions, technology, conservation or protected areas, scientific inquiry, and knowledge production. Key take-aways from the theme include the importance of tangible products in order to engage the public and stakeholders and encourage involvement as well as encouraging taking academic risks and embracing being a novice outside of the academic community.

Environmental systems in the Blavatnik School of Government building

The new Blavatnik School of Government building strives to be as sustainable as possible. In place are:

· Ground source heat pump system (heating & cooling)
· Automated natural ventilation with summer night cooling
· Automated solar control blinds
· Demand-led variable air volume mechanical ventilation, with heat recovery in winter
· Photovoltaics
· Rainwater harvesting
· Green roof
· Low energy lighting with intelligent controls

Video by Hoare Lea

Tips for the IB Environmental Systems and Societies Exam

The sample question and model answer were made by Dubay and it is not owned by the IBO. Many of the tips are based on comments in the examiners reports from the IBO and from Dubay's experience as an examiner in this subject. There are many useful links to key topics embedded in this video.
A full exam review playlist is available here:

Environmental Science at Melbourne

From lake sediments to flexible solar panels to quantitative ecology, here is a taste of the amazing collaborative environmental science research being done in the Faculty of Science at the University of Melbourne. Find out more at



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