Charcoal production for urban energy consumption is a main driver of forest degradation in sub Saharan Africa. Urban growth projections for the continent suggest that the relevance of this process will increase in the coming decades. Forest degradation associated to charcoal production is difficult to monitor and commonly overlooked and underrepresented in forest cover change and carbon emission estimates. We use a multitemporal dataset of very high-resolution remote sensing images to map kiln locations in a representative study area of tropical woodlands in central Mozambique. The resulting maps provided a characterization of the spatial extent and temporal dynamics of charcoal production. Using an indirect approach we combine kiln maps and field information on charcoal making to describe the magnitude and intensity of forest degradation linked to charcoal production, including aboveground biomass and carbon emissions. Our findings reveal that forest degradation associated to charcoal production in the study area is largely independent from deforestation driven by agricultural expansion and that its impact on forest cover change is in the same order of magnitude as deforestation. Our work illustrates the feasibility of using estimates of urban charcoal consumption to establish a link between urban energy demands and forest degradation. This kind of approach has potential to reduce uncertainties in forest cover change and carbon emission assessments in sub-Saharan Africa.
This paper examines how double exposure to economic and environmental stressors – and the interaction between the two – affect smallholder farmers in Mozambique's Limpopo River Basin. Studying two case study villages we find that people, in general, are resilient to environmental stressors. However, most households show less resilience to the socioeconomic stressors and shocks that have been introduced or intensified by economic globalisation. Our findings indicate that economic change brought about by structural adjustment policies pressures rural people to alter their approach to farming, which makes it more difficult for them to respond to environmental change. For example, smallholder farmers find it difficult to make a transition to commercial farming within the Limpopo Basin, in part because farming techniques that are well adapted to managing environmental variability in the region – such as seeding many small plots – are not well suited to the economies of scale needed for profitable commercial agriculture. People use a variety of strategies to cope with interactive environmental and economic stressors and shocks, but many face considerable constraints to profitably exploiting market‐based opportunities. We conclude that economic stressors and shocks may now be causing small‐scale agriculture to be less well adapted to ecological and climate variability, making smallholders more vulnerable to future climate change. Some local level policy interventions, including those that support and build on local environmental knowledge, could assist rural agricultural societies in adapting to future environmental change in the context of economic globalisation.
This paper presents the key contributions of marine cultural heritage to the survival of coastal ecosystems and the communities that rely on them in East Africa. Marine cultural heritage (MCH) describes the evidence of past human interactions with coastal and marine space, encompassing tangible material culture remains and associated intangible cultural expressions within coastal communities. By incorporating the protection of MCH into local and regional environmental frameworks, we gain an essential indicator to monitor change dynamics in natural habitats, the cumulative impacts of climate change, and the development of social adaptation strategies. An essential aspect of this development is the move away from global sustainability strategies towards community-centric management and stewardship. Such processes utilise a combination of traditional knowledge systems and scientific approaches designed to harness targeted economic, ecological, and social sustainable development. To argue for the incorporation of MCH into local and regional environmental frameworks in the area, this paper presents four case studies from the Rising from the Depths Network, a challenge-led research network focusing on harnessing the potential of MCH to bring sustainable development strategies to East Africa.
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