Poverty and hunger exist in a vicious cycle: Those living in poverty often face hunger as they cannot afford nutritious food for themselves and their families. On the flip-side, hunger fuels poverty as it’s difficult for people to earn more money when they’re undernourished. In response, families may sell off their livestock or tools, or buy only staple foods like wheat rather than fresh fruit and vegetables. All of these measures buy short-term relief but perpetuate a longer-term cycle between nutrition and extreme poverty. This cycle often passes from parents to their children, making it hard to break the pattern.

Over the past ten years, the Sahel region and the Horn of Africa (including Somalia and Kenya) have been repeatedly affected by food shortages and food insecurity. In these areas of the developing world, where families rely on their own small farms to grow their food, there are periods before harvests known as “hungry seasons.” These are the times of year when food supplies from the previous harvest are all but exhausted, yet the opportunity to replenish supplies is still some time away. In years of bountiful harvests, families often try to put aside reserves. But climate variability has led to repeated droughts in some areas and floods in others, devastating any inadequate reserves families might have had. That means families are forced to skip one or several meals each day in order to make it to the next harvest — which could be months away.

It’s not just weather and harvest patterns that lead to hunger: War and conflict are also among the leading destroyers of food security. In South Sudan, civil war has led to mass displacement and abandoned fields. The resulting crop failure, combined with a soaring inflation rate that puts imported food out of reach, has left 3.5 million people hungry. Similarly, Yemen’s ongoing conflict has led to nearly 18 million people facing hunger — over 65% of the population.

Some countries, such as Zambia, enjoy relative peace and stability, yet are often plagued by hunger due to droughts or floods. Too much or too little rainfall can destroy harvests or substantially reduce the amount of animal pasture available. Unfortunately these fluctuations — which are made worse by the El Niño weather system and are likely to increase due to changes in climate — often affect the poorest regions of the world the most. What’s more, the World Bank estimates that climate change has the power to push more than 100 million people into poverty over the next decade.

When we talk about hunger, we’re not just talking about access to food, but also access to the right nutrients. In order to thrive, humans need a range of foods providing a variety of essential health benefits. Poor families often rely on just one or two staple foods— like corn or wheat — which means they’re not getting enough of critical macronutrients like protein, and they’re also missing out on lots of important vitamins and minerals. The less nourished and balanced a person’s diet, the poorer their health will be. This results in less energy, meaning that these families will be less likely to break the poverty-hunger cycle. This is especially important for women and young children: Nutrition support during pregnancy and up to the age of five can help protect children for their entire lives, reducing the likelihood of disease, poor health, and cognitive impairment. Through the LANN project, communities in countries like Sierra Leone are learning how to identify nutrient-rich wild foods that are safe to eat in order to make the most of their available resources. This is one of the many ways we look for sustainable solutions for malnourished communities.

Systemic problems, like poor infrastructure or a lack of investment in agriculture, often make it hard for food and water to reach the world populations that need it most. Ending hunger requires commitment, concerted action, and political will at both national and international levels, with focuses on sustainable development, climate change, and disaster risk reduction.

Much like the poverty-hunger cycle, nutritional resilience at a national level is tied to a country’s economic resilience. For example, Liberia’s overall economic troubles deepened after the Ebola outbreak in 2014, and now more than 15% of the country’s families don’t know where their next meal will come from. Working towards economic stability is crucial to addressing other issues.

According to the World Food Programme, 1/3 of all food produced, over 1.3 billion tons of it is never consumed. What’s more, producing this wasted food also uses other natural resources that, when threatened, have a ripple effect in the countries that are already hit hardest in terms of hunger, poverty, and climate change. Producing this wasted food requires an amount of water equal to the annual flow of Russia’s Volga River and adds 3.3 billion tons of greenhouse gases to the atmosphere.

In its outline of Sustainable Development Goal 2, the UN reveals that, “if women farmers had the same access to resources as men, the number of hungry in the world could be reduced by up to 150 million.” Female farmers are responsible for growing, harvesting, preparing, and selling the majority of food in poor countries. Women are on the front lines of the fight against hunger, yet they are frequently underrepresented at the forums where important decisions on policy and resources are made.