Sustainability, climate and energy
ENV-421
Media
18 February
Topic:
Introduction to the course
The climate system
Earth's energy balance
Greenhouse gases and aerosols
- Extract from Fred Singer's interview for PBS (File)
- Slides - powerpoint - Lecture 1 (File)
- Slides - powerpoint - Exercises 1 (File)
- Slides - powerpoint - Exercises 1 - With solutions (File)
- Video recording of Week 1 : https://mediaspace.epf... (Text and media area)
25 February
Topic:
Introduction to energy systems.
Energy balance fundamentals.
- Week 2: Presentation (File)
- Week 2: Exercises (File)
- Week 2: Solutions (File)
- Video recording of Week 2 : https://mediaspace.epf... (Text and media area)
- Week 2: Lecture with Results Part 1 (File)
- Week 2: Lecture with Results Part 2 (File)
4 March
Topic:
Radiative forcing.
Feedback mechanisms.
Climate sensitivity.
- Slides - powerpoint - Lecture 3 (File)
- Interview of Bjorn Stevens (File)
- Exercises Week 3 - without solutions (File)
- Exercises Week 3 with solutions (File)
- Video recording of Week 3 : https://mediaspace.epf... (Text and media area)
11 March
Topic:
Overview of energy technologies.
- Week 4: Lecture (File)
- Week 4: Lecture with Results CORRECTED (File)
- Video recording of Week 4 : https://mediaspace.epf... (Text and media area)
- Week 4: Exercises (File)
- Week 4: Solutions (File)
18 March
Topic:
Climate archives: geological to millennial time scales.
First part of afternoon exercise:
Conference by Michael Sigl.
Second part of afternoon exercise:
QCM evaluation, it will be graded.
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Warning ! The exercise session on March 18th from 13:15 to 15:00 will take place in room GC A3 30 instead of the usual room DIA005.
From 13:15 to 14:00, we will have the conference by Prof. Michael Sigl from the University of Bern, entitled : “ Storylines of global volcanic risks”.
We encourage all of you to attend. Prof. Sigl is one of the main international specialists of the history and impact of volcanic eruptions on Earth’s climate. He will also address the risks of such major eruptions for the next decades.
From 14:15 to 15:00, we organize a first evaluation which will make for 20% of your final grade.
The evaluation will address the first four weeks of lectures and exercises. It will NOT include the course of March 18th morning.
Guidelines are:
- You will answer different questions with multiple choice.
- Some questions may have several correct choices.
- A few questions will require you to write a short text.
- The number of points for each question will be indicated next to it.
- You will be allowed to bring with you (1) one A4 page of notes (back and front) and (2) a calculator.
- You will NOT be allowed to use phones, tablets, connected watches or computers.
- You will write your SCIPER number on each distributed page of the exam document.
- We will not apply negative notation.
Here is an example of a simple question on the climate part of the course:
The current amount of warming of the Earth, as measured by monitoring stations on land and at the surface of oceans, is determined with respect to the reference period:
A. 1800-1900
B. 1850-1900
C. 1870-1900
D. 1950-1980
Here is an example of a simple question on the energy part of the course:
A wind farm uses turbines rated at 2.5 MW with a 28% capacity factor. To produce 150 GWh per year, how many turbines are required?
A. 20 turbines
B. 25 turbines
C. 30 turbines
D. 35 turbines
- Slides - powerpoint - Lecture 5 (corrected) (File)
- Conference Michael Sigl - volcanism (File)
- Video recording of Week 5 : https://mediaspace.epf... (Text and media area)
- Mid-term exam of 18 March (File)
- Mid-Term exam of 18 March : correction "climate part" (File)
- Mid-term exam of March 18 : correction "energy part" (File)
- Video of conference of Week 5 (volcanism) : https:... (Text and media area)
25 March
Topic:
Climate variability.
Climate change scenarios.
Carbon cycle feedbacks.
- A fictional article to read an discuss during the Exercise session (File)
- Slides - powerpoint - Lecture 6 (masked answers) (File)
- Exercises with solutions (File)
- Slides - powerpoint - Lecture 6 - with answers (File)
- Video recording of Week 6 : https://mediaspace.epf... (Text and media area)
1 April
Topic:
Technologies' impacts.
1st part of afternoon exercise:
Conference by Alexis Quentin.
- Week 7: Lecture week 4 - part II (File)
- Week 7: Lecture (File)
- Week 7: Exercises (File)
- Week 7: Solutions (File)
- Video recording of Week 7 : https://mediaspace.epf... (Text and media area)
- Video of conference of Week 7 (nuclear energy) : h... (Text and media area)
8 April
Topic:
Tipping points.
Extreme events.
Regional climate change.
- Slide - powerpoint - Lecture 8 (File)
- Exercises : article by Günther Thallinger (File)
- Exercises - Lecture 8 - with solutions (File)
- Video recording of Week 8 : https://mediaspace.epf... (Text and media area)
15 April
Morning session:
PowerPlay game with Jérôme Castella (Watted)
We will participate in PowerPlay, an interactive workshop created by WattEd that explores the complex challenges of energy transition.
What you'll experience:
- A collaborative simulation where you'll make strategic investments in various energy production methods
- Decision-making about efficiency and conservation measures
- Balancing technical constraints, financial limitations, and population needs
- Working together to meet Climate Law requirements and Paris Agreement targets
The workshop uses simplified, accurate concepts based on Switzerland's energy situation and recent research. After playing, we'll have a facilitated discussion to analyze aspects not covered in the simulation, strengthen critical thinking skills regarding misinformation, reinforce your knowledge, and share reflections with fellow participants.
Please be on time to make sure you can start on time.
Afternoon exercises:
Some kind of different too - we will make an experimental approach combining LLM/AI to assess the following points in current research:
- Climate change impacts on renewable energy systems.
- Impacts of renewable energy systems on climate.
- Week 9: Lecture (File)
- Exercise Week 9: Papers (Folder)
- Week 9: Exercises LLM/AI (File)
- PowerPlay rules explanation : 16 min videoWatch it... (Text and media area)
Interruption of classes
29 April
IMPORTANT: FIELD TRIP CANCELLED/REPORTED (TBD) DUE TO AVALANCHES
Back-up Topic of this week
- Debriefing and Discussion Climate Change and Energy Systems - LLM Exercise
- Project Start
- Workshop and Discussion of Learning of Last week's exercise
- Collaborative Slide Deck
- Collaborative Table
- See Moodle week 11.
Topic:
Field visit: floating solar platform and dam in Valais, with Romande Energie.
Note that the field visit may be exchanged with the course on 6 May, depending on weather.
Practical information:
1) We will all leave by bus from the EPFL campus in Ecublens. Meeting point : Bus stop situated Avenue Piccard.
Departure at 8h00 sharp. No second chance given because of late arrival...
2) Prepare an individual picnic put in a backpack, with a bottle of water. We will not provide food on site, nor drinkable water. There is no store on site. So be prepared ! If the weather is fine enough, we'll picnic on the edge of the lake.
3) Take warm clothes with you ! Lac des Toules is located at 1,800 m of altitude. If it is windy, the environment can be quite chilly. As we'll have explanations given outside in front of the dam by Romande Energie staff, and as you'll stand during these times, a good protection with warm clothes (including a warm hat and gloves) and possibly a windstopper can help a lot...
4) Take comfortable walking shoes suitable enough to walk on a mountain trail. We'll have a 20 min walk to the lake, and about 30 min walk back to the bus. The trail could be a bit muddy, so try to avoid standard sport shoes being too slippy and not water-tight.
We will be back at the bus stop of Avenue Piccard on the EPFL campus of Ecublens at 16h00 maximum.
- Participation to the field trip to Lac des Toules : YES or NO (Choice)
- Video Recording Week 10 - LLM Workshop (URL)
6 May
Topic: Project Work
- Morning: Project Group Work 09:00-12:00
- Afternoon: Q&A on demand
- Project: Description (File)
- Project Tool (URL)
- Group Creation (URL)
- Project Presentation (File)
- Week 10 - Project Teaser (URL)
13 May
Topic: Project Work
- Morning: Project Group Work 09:00-12:00
- Afternoon: Q&A on demand
20 May
Poster Presentation Project
- Presentation format to be defined
- Illustrate your reflections on how you achieve a sustainable and resilient energy transition
- Poster to be projected on the beamer (A0, horizontal)
27 May
Topic: Lac des Toules is back ! Green light from Romande Energie !
The program of 27 May is thus : Field visit: floating solar platform and dam in Valais, with Romande Energie.
Practical information:
1) We will all leave by bus from the EPFL campus in Ecublens. Meeting point : Bus stop situated Avenue Piccard.
Departure at 8h00 sharp. No second chance given because of late arrival...
2) Prepare an individual picnic put in a backpack, with a bottle of water. We will not provide food on site, nor drinkable water. There is no store on site. So be prepared ! If the weather is fine enough, we'll picnic on the edge of the lake.
3) Take warm clothes with you ! Lac des Toules is located at 1,800 m of altitude. If it is windy, the environment can be quite chilly. As we'll have explanations given outside in front of the dam by Romande Energie staff, and as you'll stand during these times, a good protection with warm clothes (including a warm hat and gloves) and possibly a windstopper can help a lot...
4) Take comfortable walking shoes suitable enough to walk on a mountain trail. We'll have a 20 min walk to the lake, and about 30 min walk back to the bus. The trail could be a bit muddy, so try to avoid standard sport shoes being too slippy and not water-tight.
We will be back at the bus stop of Avenue Piccard on the EPFL campus of Ecublens at 16h00 maximum.