UNCED

UN Conference on Environment and

WARDA

Africa Rice Center

Development

WHO

World Health Organization

UNCTAD

UN Conference on Trade and Development

WIPO

World Intellectual Property Organization

UNDP

United Nations Development Program

WP

water productivity

UNEP

United Nations Environment Programme

WRI

World Resources Institute

UNFCCC

United Nations Framework Convention on

WSSD

World Summit on Sustainable Development

Climate Change

WUA

Water User Association

UPOV

International Union for the Protection of New

WUE

water use efficiency

Varieties of Plants

WWF

World Wildlife Fund

USDA

U.S. Department of Agriculture

yr

year

UV

ultraviolet

Zn

zinc