It's very easy to assume climate change causes droughts, but they are complex extreme events that result from a combination of drivers.
Stopping piracy has always been difficult, expensive and time consuming. The pirates of the 21st century have proved even more resilient.
The advent of genetic technologies has been reducing the time and cost attached to diagnosing rare genetic diseases.
Many African countries are sitting on vast and under-utilised oceanic territories that have the potential to unlock enormous economic value, if properly governed.
For Trump, putting America first means that being a global leader on human rights may take a back seat.
Elephants, livestock and grass all play an important role in ensuring the survival of the Hirola - the world's rarest antelope.
Rules imposed after 9/11 and still on the books are getting in the way of delivering aid to conflict zones. In countries like Yemen and Syria, it could mean the difference between life and death.
According to 2016 rankings, Somalia is the most fragile state in the world, worse off even than Syria. But there are reasons to believe things will improve.
Morocco has been on a massive diplomatic drive, using both its political and economic muscle. Since his coronation in 1999, the king has led over 40 visits to African countries south of the Sahara.
Kenya says it will appeal a high court ruling blocking the closure of the Dadaab refugee camp. The country must now weigh national security against its international obligations.
The tanker hijacking off the Somali coast will not be an isolated incident unless the international community remains engaged to root out piracy.
If Al-Shabaab maintains its hard stance, the possibility for dialogue will continue to be remote and Somalia's government will be forced to intensify the war on terror through new strategies.
At a time when poverty and hunger levels are declining around the world, famine is recurring, driven by conflicts and natural disasters. But timely action by governments and aid groups can save lives.
The revised ban allows entry to citizens of Iraq, but continues to block citizens of six other Muslim majority nations.
The Somali election didn't deliver the long-awaited universal suffrage, but was another exercise in limited democracy that extended only to a small part of the population.
A Kenyan court has ruled that the government's closure of Dadaab refugee camp is unconstitutional. This will affect the future of the refugees currently in the camp.
Barack Obama's high standing in sub-Sahara Africa persisted despite grumbling that he never delivered American largess to the degree many initially expected.
A Trump presidency brings into question America’s traditional approach to Africa, especially Rwanda. But a true shift in US foreign policy in Africa is not a priority for the Trump administration.
Unfortunately potential solutions to Trump's ban are few. Refugee agencies cannot force the US to take refugees and so they will need to find sanctuary elsewhere.
A constitutional scholar considers the legal arguments that could undo Trump's executive order barring travel by residents of seven Muslim majority countries.