At 7am, the Kubi-Qallo borehole near Goro Rukesa village in northern Kenya is already a hive of activity, as dozens of herders line up for their animals' turn to drink at the watering trough.
Five years ago, it didn't rain for a whole year in this part of Marsabit County. Scarcity of forage and water wiped out Ali Kula's stock of 50 cattle and around 100 goats.