energy secuirty- many types of power stations water is heated to generate steam which drives turbines that generate electricity, also used in fracking and development of biofuel crops
indutry- factories use water for all kinds of products eg for cooling machinary
trade- waterways and man-made canals enable the transport of goods within and between countries
water supply important for human wellbeing
health and wellbeing relies on safe and plentiful water, in 2021 nearly 800 million people world wide still didnt have access to clean water
lack of an effective sewage system in country means human waste enters water course and diseases eg cholera- limits amount of usable water- can be fatal
clean water supply needed to prepare food in safe manner eg wash fruit and veg
problems with water supply- causes economic problems
poor countries in dry areas struggle to import water, meaning cannot obtain enough to meet demand =hinder development of certain industries, or make them less globally competitive
high levels of sanitation= more usable water for schools= improved attendance= better educated, qualifications and able to work in skilled employment improving economic development in country
problems with water supply- environmental issues
water forms some habitats- death or extinction of some species or habitats
wetland features purify ester as it enters the surface store eg reeds remove toxins from water and provide nesting material for birds, if lakes deminish wetlands cannot survive as ecologically sensitive
decreased water levels, increases conc of algae blooms, eutrophication and fertiliser which run into lakes can cause eutrophication
water insecurity- causing conflict within countries
changes upstream have major impacts downstream so regions upstream must manage river carefully
different users may be in competition eg agriculture v domestic v manufacturing