Crops have been destroyed and grazing land for herding communities has been reduced.
Half of South Sudan's 11 million people depend on food assistance.
Al Jazeera's Haru Mutasa reports from Fangak, in Jonglei state.
- Follow us on Twitter: https://twitter.com/AJEnglish/
- Find us on Facebook: https://www.facebook.com/aljazeera/
- Check our website: https://www.aljazeera.com/