Sustainability: the use of the Earth's resources a way that will not permanently destroy r deplete them. Living withing the limits of the Earth's biocapacity.
Biocapacity: the amount of the Earth's biological productive area-- cropland, pasture, forest, fisheries--- what is available to provide resources to support life.
Ecological Footprint: a measure of how much land and water area required to supply the resources a person or population consumes and to absorb the wastes it produces
Natural Resources: raw materials that are obtained from the Earth and are considered valuable
There are many forms of renewable energy.
current forms of energy
The primary sources of energy in the environment include fuels like
All primary source fuels except biomass are non-renewable.
Primary sources also include renewable sources:
how electricity is made
where do we get coal?