agriculture aquifer australia bill book bottle bottled water california canada central valley china clean water climate climate change colorado river conference conflict conservation consumption contamination crisis dam delta desalination drinking water drought earthquake economics electricity energy environment epa fish flood food glacier global warming great lakes green ground water groundwater health hydrogeology hydrology hydropower ice india infrastructure irrigation israel lake law levee los angeles management map miscellaneous nasa ocean oil planning policy pollution power price project rain recycle report reservoir restoration river sanitation sea sea level rise sewage shortage sustainability tap water technology treatment un us usa video war waste wastewater water water conservation water crisis water management water quality water resources water rights water shortage water supply water use world world water