Answer key 243
15 Future directions: Ecology or technology?
15·1 Suggested answers: tragedy, collapse, dire, disaster, scare stories, overshoot, decimate, bubble, burst, crash,
overlowing, trajectory
15·2 Consult a dictionary for denitions.
- v. 11. v.
- v. 12. n.
- v. 13. n.
- n. 14. adj.
- n. 15. v.
- v. 16. n.
- adj. 17. v.
- adj. 18. adj.
- n. 19. n.
- n. 20. adj.
15·3 1. crucial 11. persistent - conirmed 12. notion
- input 13. intervened
- Coupled 14. core
- acknowledged 15. explicit
- rationality 16. constraints
- uniformity 17. simulate
- ideology 18. poses
- model 19. Unrestrained
- underlying 20. commissioned
15·4 1. trajectory (n.) - exponentially (adv.)
- urgent (adj.)
- imminent (adj.)
- dire (adj.)
- provoke (v.)
- inlate (v.)
- forefront (n.)
- increments (n.)
- disseminate (v.)
15·5 1. Both warn us that humanity is on a path that could lead to disaster. - hey used a computer model and fed data on population, food production, industrial production,
pollution, and consumption of natural nonrenewable resources into a computer model that analyzed
how the data interacted and came up with 12 projected scenarios. On that basis, they predicted that
if humanity did not make signiicant changes, it would exhaust the planet’s limits and face ecological
collapse. - he political and business community tried to discredit the indings, because they were contrary to their
notions of growth and proit, while others, including President Jimmy Carter, welcomed and supported
the book. - he Limits to Growth became an international best-seller, and although it has been updated twice, its
conclusions remain unchanged. - he exponential growth of population and the material economy could exhaust the planet’s limited
resources, increase pollution beyond tolerable levels, and exceed the planet’s carrying capacity, which
would result in overshoot. If no one pays attention or begins to act in time, overshoot could cause
collapse. - Sustainability can prevent overshoot if humanity manages the consumption of nonrenewable resources,
replaces them with renewable resources, and reduces pollution so that everyone will have enough to live
on and future generations will be able to meet their needs. - People can use technology to make changes, but most importantly they have to change their values and
the way they think about growth and the environment.