Andy Hall/Oxfam
67-year-old Zeneba Louki sits on the left, with Etta Brahim, 36, outside her home in northern Chad with her children and sister, Ashta Hamid, in red. The whole family must survive for a week on the food in the white bag.
Andy Hall/Oxfam
Pastoralist Louki Abdraman said he lost 21 camels during the last dry season in the Bahr el Ghazal region of Chad. Water from non-renovated wells is of poor quality and causes intestinal worms or mouth ulcers in his camels, eventually killing them.
Andy Hall/Oxfam
Fatima Mahammad Aki, a 25-year-old resident of Andrabadi village in northern Chad, is attempting to build a new shelter for her and her family of four children.
Andy Hall/Oxfam
Grazing areas for livestock are fast disappearing, and livelihoods are being threatened as desertification takes its grip, encouraging pastoralists in northern Chad - such as 25-year-old Fatima Mahamad Ali - to build new homes in the search for suitable areas for their animals to feed.
Andy Hall/Oxfam
On the move through the dry dusty landscape - drought and decreasing water reserves in Burkina Faso have resulted in failed crops and a lack of pastures.
Andy Hall/Oxfam
Northern Chad is home to 36-year-old Etta Brahim Senussi and her two two-year-old children (L-R), Mohamed Ali and Fatima Moussa. The country is one of eight in West Africa facing drought conditions and a humanitarian crisis.
Andy Hall/Oxfam
This ecologically fragile region is becoming increasingly vulnerable to insufficient rainfall, and fluctuating animal and food prices are affecting millions of pastoralists, resulting in potentially grave uncertainty on the road to markets such as in Moussoro, in the Bahr El Ghazal province of northern Chad.
Andy Hall/Oxfam
Emaciated cattle walk along a dried-out riverbed, as the drought has caused crops and pasture to fail in Burkina Faso.
Andy Hall/Oxfam
Kadija Dgarde is finding it harder to find the wood both uses and sells in Guera province, Chad.
Andy Hall/Oxfam
In 2012, several countries across the Sahel region are once again facing a serious food crisis, as desertification takes its grip, such as here in Bahr El Ghazal province, Northern Chad.
Andy Hall/Oxfam
Hawa Ahmat leads a camel as she takes her four sheep to sell at the market in Moussoro, Bahr El Ghazal province in northern Chad - yet with widely fluctuating prices, she doesn't know if what she receives will be enough to survive on.
Andy Hall/Oxfam
The drought in Burkina Faso has resulted in a lack of crops and pasture, as well as decreasing water reserves. Millions of people across the region - such as Fatimata Sawadogo and her son, Abou Waha from Garagui village in the north of Burkina Faso - are food insecure.
E.Parr/Oxfam
Dubai filmmaker Ali Mostafa visited an organic cotton cooperative near Bougouni in Mali on behalf of Oxfam. The group is rehabilitating wells and attempting to provide further humanitarian relief. Ali Mostafa has now recorded a video appeal to help Oxfam's campaign - watch it
here.