Investment in climate change adaptation can help ensure that the impacts of climate change - including a projected 20-50 per cent decline in water availability - do not reverse decades of development progress in Africa, according to a new report released by the UNEP. Keeping Track of Adaptation Actions in Africa (KTAA) - Targeted Fiscal Stimulus Actions Making a Difference - is the first graphical report that presents practical examples of successful low-cost adaptation solutions from around sub-Saharan Africa in one concise handbook. The report includes examples of successful adaptation projects that have provided the impetus for large-scale government investments and policy action. According to the report, by 2050 Africa's population will have doubled. The continent will then be home to 2 billion people, the majority of which will still largely depend on agriculture for their livelihoods.