Sustainability

-capacity to maintain a certain process/state

-attempt to meet needs of present without compromising the future 

-use of natures resources at a rate at which they can be replenished naturally**

-maintain Earth's finite limits

-very general concept, presents difficulty when defining

"Green"

-environmentalism; philosophy and social movement

-concern for conservation, sustainability, and improvement of human treatment of the environment

-concern for nature itself + state of civilization

-treating nature with greater respect

Climate Change

-long term/significant change in average weather, atmosphere

-changes in average wind patterns, precipitation, temp, etc.

-can occur over millions of years typically, but can be facilitated by others circumstances to change in hundreds of years (extremely short period of time in relative terms)

-can occur from sunlight intensity

-recent issue-civilization's impact on change

-sometimes referred to as global warming in present age

-Non-climate factors contributing to climate change include: amounts of CO2, plate tectonics,  solar variation, orbital variations, and volcanism

-Human influence-fossil fuels, aerosols, land use, livestock,etc.

Concept of Energy

-different methods to power our world