Water has an important role in the ecological and socio-political
global systems; for this awareness many studies have enhanced during
the years to determinate drivers that may influence in negative or
positive way water resources management.
Water use is linked to a very complex system, in which climatic
factors (like precipitation, temperature, floods, droughts and others)
and non-climatic drivers (like population, economy, politics,
life-style and others) influence each other.
The whole water resources system is closely related to temperature
changing over the years, as well as population changing.
The temperature variations affect the performance of all climatic
agents related to water resources and water use by humans.
The population growth affects water demand for all sectors, although,
there is an increasing of waste water quantity over the years. But
it's also affects the pollution trend, which in turn influences the
water resources themselves. Therefore, the water management plays a
key role in water use and in adaptation strategies to prevent
water-related environmental disasters.
All these factors are very
important considering that over the years there has been a constant
precipitation trend, compared to the raise of temperature and
consequently the evaporation increase, reducing at an alarming rate
the amount of freshwater.