Depletion (noun)

1. The process of using up a resource, especially a natural resource, so that it becomes scarce or exhausted.
2. A reduction in the amount or number of something.

Origin:

Derived from the latin word 'deplere' meaning 'to empty'.

Examples:

1. The depletion of the ozone layer has led to an increase in harmful UV radiation.
2. The depletion of oil reserves has led to a rise in fuel prices.
3. The depletion of fish stocks in the ocean has had a devastating impact on the ecosystem.
4. The depletion of groundwater has resulted in water scarcity in many regions.
5. The depletion of the forests has led to a loss of biodiversity and habitat.