The United Nations Food and Agriculture Organization reported that climate change, conflict and economic instability are increasing food insecurity around the world.

Rates of hunger around the world decreased steadily until 2015, but the UN says a combination of conflicts and climate emergencies caused a rise in food insecurity in the last 4 years.

The FAO report acknowledged that it’s difficult to separate the individual contributions of climate change, conflict and economic shocks to determine which has made the largest impact, but the report says that economic slumps likely exacerbated problems presented by conflict and climate change.

Though other factors may increase rates of hunger, the report explains that climate change is keeping farmers from producing enough food for the global population.

The report suggests that helping small-scale farmers become more resilient to climate-related weather extremes is one key to reducing food insecurity.