Testing the 'megadrought' hypothesis: the timing, cause and impacts of climate change in equatorial Africa (DeepCHALLA-UK) DeepCHALLA-UK aims to deliver a step-change in the understanding of the African megadroughts by evaluating the number, 
duration, cause and intensity of these millennial-scale arid intervals over the last 250 ka, from the exceptional sedimentary
record of Lake Challa, a deep crater lake on the flank of Kilimanjaro. Beneficiaries of this research will primarily be in Kenya and Tanzania, via increased capacity and knowledge filtered down to the community level. Research and development activity contributing to the UK’s strategy to address key development challenges.