Biosphere Questions

Using an ecological framework briefly outline some important current physical conditions and trends in place. Please reference the following: air, water, soil, non-human biota, human population, overshoot, mineral resources, artifact. (~200 words)

• 1. Give specific examples of three resource trends and three hazard trends.
• 2. What are five "peaks" to which we refer with the phrase "peak everything"?
• 3. What do we mean and understand by ERoEI and RRoRI as we use these terms in valuescience?
• 4. What was putative ERoEI for oil extraction in the early 20th century and what is it for tar sands and oil shale c. 2016? (two ratios)
• 5. Have we identified proven energy resources accessible with current technology which have ERoEI comparable to oil in the early 20th century?
• 6. List one or more challenges inherent to calculating and comparing ERoEI.
• 7. What is the minimum ERoEI estimated to be necessary to sustain complex human society?
• 8. What are three aspects of environmental quality that you can use as evidence to support a claim that human population is beyond carrying capacity?