Sustainable Development Goal 2

Zero Hunger

Nearly 800 million people worldwide experience extreme hunger and malnutrition, snaring them in a cycle of low productivity and disease that creates a major barrier to human progress and sustainable development. Ending hunger by 2030 is not just a matter of providing food to populations in need. It will require significant investments in rural and urban food systems to expand sustainable agriculture, improve health support, and to build durable distribution networks.

Our work to improve food and feed production for humans and livestock in Africa is helping to secure livelihoods, enhance socio-economic status, and improve rural economies. And in the face of climate change, diminishing soil productivity, and growing water scarcity, we are leading innovative efforts to improve resource access for farmers through the safe use of wastewater in agriculture.


Kai Schwarzel

Kai Schwärzel


“How we use soil and water determines how well we can feed and provide water for our communities. I am passionate about improving land, soil, and water resources to boost food production for a growing world.”

Nyasha Tirivayi


“Although there is enough food to feed the world, over 800 million people go hungry each day. I want to help the global effort to eradicate hunger and malnutrition. My research at UNU examines the role of humanitarian, social, and agricultural programmes and innovations in alleviating hunger and improving the nutrition of vulnerable populations.”

Hiroshan Hettiarachchi


“We are in the 21st century, but one in nine of us still do not get enough to eat. Through my current work on the safe use of wastewater in agriculture (SUWA), I strive to be part of the solution. SUWA is a cost-effective alternative for providing the water and nutrients needed for agriculture.”


Safe Use of Wastewater in Agriculture

Despite water shortages worldwide, more than 80 per cent of the wastewater generated by society flows back into the ecosystem without being reused. This project aims to boost the use of wastewater as a valuable source of energy, irrigation, and fertilisation.

Irrigated Agriculture in West Africa

West Africa is facing challenges connected to water scarcity and depletion of soil fertility due to high variability of seasonal rainfall and other climate variables. To help overcome these challenges, this project is working with local stakeholders to develop easy-to-use, cost-effective, and efficient decision-making tools to improve management and yields of irrigated agriculture.

Agrodiversity and Sustainability

Agrodiversity refers to the ways in which farmers use the natural diversity of the environment for livelihoods, such as crop selection, and management of land, water and biota. This project is documenting best practices in forest management and rehabilitation, training postgraduate students, and strengthening local community capacity to mitigate and adapt to climate and ecosystem change.