Energy and the Environment Lecture 2 PHYS/ENVS 3070 Professor Dmitri Uzdensky Aug. 27, 2014 PHYS/ENVS 3070 1Announcements**• Clickers:!!!• Make!sure!you!register!your!iClicker!!11!see!link!on!the!course!website)!• You!need!to!register!your!iClicker!once!every!semester.!!There!is!no!separate!clicker!registra>on!for!each!individual!course.!!• Reading:!!!Chapter!1!of!E&E!textbook.!• Office*Hours:!!Tue.!11am!1!12!pm!(Gamow!Tower!F835).!• Email:!!1 best!way!to!contact!me!for!non1physics!ques>ons;!!1 please!include!“PHYS13070”!in!the!Subject!line.!Aug.!27,!2014! PHYS/ENVS!3070! 2!Clarifica>ons:!The!CAPA*dispensary*folders*(check!for!PHYS3070)!are!downstairs.!!Each!week!it!will!have!a!printout!of!your!assignment!and!PIN!number.!!!!You!can!always!use!the!PIN*ge?er*on!the!CAPA!web!page!too.!Announcements**CAPA:*!!!!CAPA!Homework!!#1!is!now!available.!!It!is!due!next!Friday,!Sept.!5,!at!11:00!pm.!!If!you!have!registered!for!the!course!before!this!Tuesday!morning,!you!should!be!automa>cally!registered!for!CAPA!as!well.!!Otherwise,!you!will!need!to!use!the!!“late*enrollment”*link!on!the!CAPA!webpage.!!Please!check!the!CAPA!dispensary!for!a!printout.!Aug.!27,!2014! PHYS/ENVS!3070! 3!Go*out*of*this*main*lecture*hall*(G1B20),*and*across*the*hall*are*a*set*of*stairs*down*to*the*G2B*level.**You*will*see*this*set*of*doors*to*the* Phy sics'Help'Room.***Aug.!27,!2014! PHYS/ENVS!3070! 4!Exams: - Three midterm exams in class at our regular lecture time (tentative): Sep. 26, Oct. 31, Nov. 19. - Final exam date TBA. - It is your responsibility to make sure you have no conflicts with these dates and times. - There will be no make-up exams (drop lowest!). - Each of the 4 exams (including Final) costs 10%. If you have special needs (disabilities, religious observances, …), please let me know within the first two weeks. See policies in the course Syllabus. Aug. 27, 2014 PHYS/ENVS 3070 5Exams: - Three midterm exams in class at our regular lecture time (tentative): Sep. 26, Oct. 24, Nov. 19. - Final exam date TBA. - It is your responsibility to make sure you have no conflicts with these dates and times. - There will be no make-up exams (drop lowest!). - Each of the 4 exams (including Final) costs 10%. If you have special needs (disabilities, religious observances, …), please let me know within the first two weeks. See policies in the course Syllabus. Aug. 27, 2014 PHYS/ENVS 3070 61. How will we power our future? 2. How will we avoid/deal with climate change? 3. How will we feed 10 billion people? Challenges for the 21st Century: Aug. 27, 2014 PHYS/ENVS 3070 7Challenge*1:**Energy*Aug.!27,!2014! PHYS/ENVS!3070! 8!(2013!Int.!Energy!Outlook,!US!Energy!Informa>on!Administra>on)!!OECD:!Organiza(on*for*Economic*Coopera(on*and*Development:!!US,!Canada,!Mexico,!Europe,!Turkey,!Israel,!Japan,!S.!Korea,!Australia,!and!New!Zealand.!Challenge*1:**Energy*Aug.!27,!2014! PHYS/ENVS!3070! 9!(US!Energy!Informa>on!Administra>on)!!History!of!US!Energy!Produc>on,!by!Source!• Drama>c!Changes!in!Primary!Energy!Produc>on!do!happen.!!• But!they!are!not!quick,!they!take!decades!and!require!tremendous!effort!and!investment.!Aug. 27, 2014 PHYS/ENVS 3070 10 Challenge*2:**Climate*Change*Source:!NASA!Aug. 27, 2014 PHYS/ENVS 3070 11 Challenge*2:**Climate*Change*“Difficult!to!see.!!Always!in!mo>on!is!the!future.”!What!does!this!mean!for!our!future?!Projected*Surface*Temperature*Change*Late*21st*Century*(2090U2099)*Source:*IPCC*FiWh*Assessment*Report:*Climate*Change*2013!Challenge*2:**Climate*Change*Aug.!27,!2014! PHYS/ENVS!3070! 12!Projected*Surface*Temperature*Change*Late*21st*Century*(2081U2099)*Source:*IPCC*FiWh*Assessment*Report:*Climate*Change*2013!Challenge*2:**Climate*Change*Aug.!27,!2014! PHYS/ENVS!3070! 13!Course overview: Fundamentals of Energy (basic physics) Fossil Fuels (what we are doing now) Heat Engines (more physics, how we use fossil fuels) Alternate Fuels (solar, wind, nuclear, …) Conservation/Energy in the home Transportation Air pollution Global effects (ozone, climate change, ocean acidification) Food, Water, and Land Use Crises Aug. 27, 2014 PHYS/ENVS 3070 14Energy and Environment are constantly in the news these days… They affect economic and environmental health of country and the world, and the jobs many of you will have, and your expenditures (home utilities, gas for car) Aug. 27, 2014 PHYS/ENVS 3070 15 ENERGY*AND*ENVIRONMENT*Issues surrounding energy production, consumption, and the environment are highly complex. They involve economics, public policy, politics, environmental science, physics, chemistry, biology, engineering, psychology… The environment is a chaotic system, with limited predictability (human behavior is also unpredictable). Making the “right” decisions entails a complicated cost-benefit analysis. Having a grasp of the important scientific issues is a good starting point… Aug. 27, 2014 PHYS/ENVS 3070 16 ENERGY*AND*ENVIRONMENT*Note that this is a physics course! The class has no prerequisites except algebra and logical thinking. Many issues we will cover are complex, and can be emotional with strong opinions on different sides. This is not physics such as if I slide a block down an incline plane without friction…. But still, it is subject to quantitative logical scientific reasoning. We will focus on facts and technical aspects here. Aug. 27, 2014 PHYS/ENVS 3070 17My goal in this course is to teach you how to be a mini- (or general) Energy Analyst You see a talk with a “brilliant” “new” “green” idea! But is it a good idea? Does it deserve your support, your investment, your vote? At the end you should be able to work through the numbers, look for the “gotchas” The “Cornucopians” vs “The Long Emergency” Aug. 27, 2014 PHYS/ENVS 3070 18Scientifically true statement: The more fire trucks that are sent to fight a fire, the more damage the fire does. Correlation or Causation? Caution I Aug. 27, 2014 PHYS/ENVS 3070 19Caution II Newspaper articles (i.e. popular press) often briefly summarize what reporters have “learned” in 5-10 minutes from what researchers have been working on for years. These articles need to be viewed with caution and for research should be backed up with more detailed source material. Aug. 27, 2014 PHYS/ENVS 3070 20YES! Is Calculus necessary? NO! Aug. 27, 2014 PHYS/ENVS 3070 21 The math skills
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