Climate change refers to a change in the state of the climate that can be identified (e.g., by using statistical tests) by changes in the mean and/or the variability of its properties and that persists for an extended period, typically decades or longer. Climate change may be due to natural internal processes or external forcings such as modulations of the solar cycles, volcanic eruptions and persistent anthropogenic changes in the composition of the atmosphere or in land use. [AGROVOC]

The occupation or reservation of land or water area for any human activity or any defined purpose. It also includes use of the air space above the land or water.

The common area where human settlements and built structures are intermixed and/or adjacent to undeveloped land in which the vegetation is permitted to grow without significant human interference.