Prospects for long-term droughts and the need for improved water management to cope with them have been major themes of the International Forum on Drought, held in Seville, Spain, in June, and of the report released last week by the Natural Resources Defense Council In Hot Water: Water Management Strategies to Weather the Effects of Global Warming.
Meteorological aspects of droughts, including effect of global warming on precipitation levels, are classed in 551.5773 Variations in precipitation over time, where droughts are mentioned in the including note.
Water conservation is classed in 333.9116 Water conservation (built with 333.911 General topics of water plus 6 from notation 16 Conservation and protection from add table under 333.7-333.9 Natural resources and energy, following instructions at 333.9111-333.9117 Subdivisions for topics of water).
Works on water supply as a public utility and on water-related public works are classed in 363.61 Water supply.
Water supply technology is classed in 628.1 Water supply, e.g., 628.13 Storage and conservation.
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