prove extremely costly. Here encroachment on flood plains by buildings engenders encroachment by flooding. Encroachment from rising sea levels: This is a more dramatic and permanent example of encroachment from flooding whose major effects are predicted to become evident over the coming decades. It is caused by failure to respond effectively to the challenge of global warming and rising carbon emissions. Here encroachment on air quality engenders encroachment by rising sea levels. Encroachment by disease resistant bacteria: The widespread development and use of pharmaceutical drugs to control disease has created a situation in which bacteria are mutating and treatment-resistant bacteria are becoming a major challenge to hospitals. Here encroachment by progressive pharmaceutical response to disease engenders encroachment by bacterial resistance to those treatments. Encroachment from population pressure: This widely documented phenomenon is associated with the ever-increasing use of non-renewable resources. Here encroachment by increasing population (and reproductive rights) engenders encroachment by the demands on resources which there is a reasonable probability cannot be fulfilled and will therefore engender a violent and unreasonable response. Encroachment of old age: The process of ageing, and terminal illness, may be experienced as encroaching shadows on human dignity. Equally, while near the peak of their careers, people may note the encroachment of youth and change. Other uses In medical terminology, a temporal encroachment has to do with bones in the skull pressing tightly against the brain after an injury to the head. In computer science, a temporal key that is improperly validatated is considered a temporal encroachment. References External links USGS site using the term about saline intrusion into Florida marsh Article about the papacy using the term in reference to the spiritual power (the Pope) gaining power in the mundane ("temporal") realm. Time