1. Table 1-1, p.3

2. N2 O2 animal respiration decaying organic matter oxidation soil/plants
plankton
decaying
plants &
animals
plant
photosyn-
thesis

3. CO2 decaying plants volcanic eruptions animal exhalation
burning of fossil fuels
deforestation
plant photosynthesis

4. FIGURE 1.3 Measurements of CO2 in parts per million (ppm) at Mauna Loa Observatory, Hawaii. Higher readings occur in winter when plants die and release CO2 to the atmosphere. Lower readings occur in summer when more abundant vegetation absorbs CO2from the atmosphere. The solid line is the average yearly value.
Fig. 1-3, p.5

6. FIGURE Projected surface air temperature changes from different climate models. Model input from greenhouse gases only is shown in yellow; input from greenhouse gases plus aerosols is shown in blue; input from greenhouse gases, sulfate aerosols, and solar energy changes is shown in red. The gray line shows observed surface temperatures. The dashed line is the 1880 to 1999 mean temperature. (Redrawn from “The Science of Climate Change” by Tom M.L. Wigley, published by the Pew Center of Global Climate Change.)
Fig , p.393

7. FIGURE 12.7 The average distribution of ozone above the earth’s surface in the middle latitudes.
Fig. 12-7, p.325

8. FIGURE 12.8 An ozone molecule absorbing ultraviolet radiation can become molecular oxygen (O2) and atomic oxygen (O).
Fig. 12-8, p.326