Jane Ferguson:

A crippling drought in Somalia shows no sign of easing. And it keeps happening. Just six years after the last major drought emergency, the rains have failed again.

Temperatures have risen in East Africa over the last three decades, and a report by the U.K.-based charity Oxfam says there is growing evidence climate change is making drought more frequent and more severe.

This has always been an unforgiving and harsh environment for people, yet they have survived here for thousands of years by living as nomads, herding their animals to the best grazing places.

Around 80 percent of Somalis make their living on the land. Without enough rainwater, that way of life is fast becoming impossible. This part of the country is really famous for its livestock. As far as the eye can see, you would normally see camels, goats and sheep. Now, however, it's completely desolate. And that is not normal.

Mahmoud Ali once had 500 sheep and goats. Now only 100 remain after most of them withered and died in the last two years.

If the rest of them die, what will you do?