science
The systematic study of the natural world through observation and experiment.
English
Earth's Finite Resources and Human Extraction
Because Earth is essentially a closed system, there is a finite amount of matter on the planet and in its atmosphere. All of the matter that we have now, is all the matter that there will likely ever be on Earth. There would only be added matter if, for example, the Earth were to be bombarded by meteorites, and their matter was incorporated into Earth.
Natural Resources and Science
This Natural Resource and Science section addresses the questions posed at the end of the case study:
heat engine [image]
Figure 6: Schematic of a heat engine.[fn][[nid:1286]][/fn]
English
- energy
- science
- image
- heat engine
Mt. Kilimanjaro [photo]
English
- climate change
- science
- photo
- kilimanjaro
rooftop solar water heater [photo]
English
Figure 12: Simple model of rooftop solar thermal hot water heaters which are used in the vast majority of homes in Israel. Water from the home system runs through coils in the solar collector panel, which heats the water. Heated water is stored in the tank for distribution back into the home system.[fn][[nid:1251]][/fn]
- energy
- science
- photo
- rooftop solar water heater
energy ethics 5 [cite]
5. Energy, Justice and Peace, p. 85.