Painted marker posts help quell land conflicts in Sudan's Darfur
Though mass killings have eased, tensions remain as droughts force Arab herders to compete with non-Arab farmers over land
New seed varieties not reaching Africa's small farmers, study says
"Products farmers might want to choose, varieties that are better resistant to climate change, aren't accessible"
U.N. seeks $1.3 billion in humanitarian funding for South Sudan
More than 680,000 children below the age of five are believed to be acutely malnourished
FACTBOX - Key facts about the Ebola epidemic
Here are some key facts and figures about the epidemic, which killed more than 11,300 people out of 28,600 cases
Danger ahead: migration, climate top risks for Davos leaders
Experts say we live in an increasingly dangerous world, with political, economic and environmental threats piling up
One in four children in conflict zones "risk losing their future" - UNICEF
South Sudan has the largest proportion of children out of school, followed by Niger, Sudan and Afghanistan
WHO calls for access to Yemen's "virtually besieged" city
Trucks carrying oxygen, medicines and medical supplies have not been able to enter Taiz since mid-December
Africa takes fresh look at GMO crops as drought blights continent
As millions face hunger due to droughts and poor rains, will Africa change its mind on genetically modified crops?