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TONIGHT PowerPoint Presentation

TONIGHT

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TONIGHT

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  1. TONIGHT

  2. Exam 2 Wednesday in class • Covers R and K Chapter 8, 9, 10 • And ‘not in the text’ • And IPCC Summary for Policy Makers • And carbon wedges • Material mostly since Exam 1, but the skills with units and balancing very simple reactions will be assumed.

  3. Final course grade • Midterm 1=100 • Midterm 2 = 100 • Sum of HW=150 (including CAPA) • Final = 200. • Total = 550

  4. TodayCarbon overview How much CO2 is being spewed? Changes? Atmospheric CO2 Where is the rest? Does carbon determine our destiny?

  5. The logic • Burning fossil fuels, the accumulation of millions of years of solar energy, emits CO2, in large and increasing amounts. • This CO2 (with other modern gases) will change the heat balance of the planet. • The effects of this heat balance will be climate change, only partially predicable. • There may be feedback mechanisms that may accelerate and amplify these changes, leading to large uncertainties.

  6. TO the earth Power/m2 ~ T4, T in deg Kelvin

  7. FROM the earth ~T4

  8. Carbon emissions (1.02)50 = 2.69, 3.2 Gt/yr * 2.69 = 8.6 Gt /yr

  9. Reminder- Emitting 9 billion tons of carbon per year is the equivalent of 9 *44/12 =33 billion tons of CO2!!!!!

  10. CO2 into the atmosphere and within the atmosphere? HW #6, problems 1 and 3 Your conclusion?

  11. Oceanic CO2 Acidity IPCC SFPM

  12. Methane Science 31 January 2014 page 494

  13. Science 21 February 2014 page 844

  14. Warmer = drier on land Science 14 Feb. 2014 page 738

  15. causality Physical science models Social, economic models

  16. Colorado Daily Jan. 23 2014

  17. Economist Jan. 25 2014

  18. Or—do not fix the problem but repair it! Geoengineering—CCS, albedo.

  19. Exam 2 • In class, 0900 – 0950 Wednesday. • Open book, but not other notes, calculator • Unit conversions provided • Probably returned Friday • Friday, backtrack in R and K to ‘renewable’ energy sources • Extra office hours– Monday– until ~4 -Tuesday - ~3:30-5 - Wednesday, only until ~11 • CAPA for April 7 in the boxes