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Recent global temperature increases and extreme heat events have raised concerns about their impact on health. The area surrounding Lake Victoria, accommodating over 45 million people and ranking among Africa's most densely populated regions, faces rapid population growth and urbanization, set to double its population by 2050 compared to 2022 for most countries in the region. Global-scale projections indicate a potential amplification in heat stress, reaching levels up to 200 times the...

Understanding historical evolution and future projections of drought are crucial for Madagascar, which experiences drought almost every year. Not only it contributes to the economic development of the area but it also helps to mitigate direct and indirect impacts of drought on human’s lives and natural ecosystems. To begin with, it is crucial to use accurate datasets for assessing drought in order to get reliable findings. However, Madagascar lacks reliable station datasets. Here,...

Oldoinyo Lengai volcano is a strato-volcano in the eastern part of the East African Rift system and as such, a curious end member of a young magmatic segment: it is the only volcano worldwide that currently erupts carbonatitic lava. Known to alternate between large explosive (ash) and smaller effusive eruptions, we analyze volcanic tremor from Oldoinyo Lengai during a renewed phase of eruptive but non-explosive activity beginning in late 2018,  which we recorded with a...

Lake Elmenteita located in the central Kenyan Rift System is a shallow (ca. 1 m deep on average), hyper-saline and alkaline playa lake of international bio-ecological importance, as emphasized by its classification as RAMSAR site (2005) and UNESCO world heritage site of “outstanding universal value” (2011). Unusually high rainfall and anthropogenic influence (deforestation, agriculture, sewage loading) are current drivers of changes in water level, composition and quality...

This paper analyzes the optical properties and air mass trajectory of aerosol pollution over North-West (NW) Nigeria. The paper studied the Aerosol Optical Depth (AOD), Angstrom Exponent (AE), Single Scattering Albedo (SSA) and air mass trajectory analysis of aerosols pollution over NW Nigeria from 2018 to 2022. For this purpose, the use of satellite products from Ozone Monitoring Instrument (OMI), the Moderate Resolution Imaging Spectroradiometer (MODIS), and back trajectories of air...

This study investigates provincial-level extreme weather conditions over Zambia using the Coupled Model Intercomparison Project (CMIP6) climate projections for various emission scenarios from 25 Global Climate Models (GCMs). Taylor diagram analysis is performed to identify the best-performing GCMs by evaluating precipitation and temperature variables with the observed datasets for the baseline period (1950-2014). Earlier studies have investigated the changes in precipitation and temperature...

Drought poses a thread in the already existing water challenges in dryland regions. Drought hazard and risk are, however, not merely a natural phenomenon. Instead they are shaped and influenced by human behaviour and interventions. This raises questions about how to distribute the limited available water in an equitable manner, especially in drought prone areas such as drylands where water is key to people’s livelihood and fragile ecosystems. In the Horn of Africa Drylands (HAD)...

The West African savannas region is currently undergoing extensive agricultural intensification due to rapid population growth. Those anthropogenic land cover changes (LCC) can have significant impacts at regional and seasonal scales but also on extreme weather events to which human, natural and economical systems are highly vulnerable. However, the effects of LCC on extreme events remain either largely unexplored at regional/local scale and/or without consensus. To address this...

The West African savannas region is currently undergoing extensive agricultural intensification due to rapid population growth. Those anthropogenic land cover changes (LCC) can have significant impacts at regional and seasonal scales but also on extreme weather events to which human, natural and economical systems are highly vulnerable. However, the effects of LCC on extreme events remain either largely unexplored at regional/local scale and/or without consensus. To address this...

Abstract Background Mentoring involves the informal conveyance of knowledge, social capital, and support, as perceived by the recipient to be pertinent to aspects of work, career, and personal or professional development. Students pursuing health-related courses need access to mentorship and its benefits during their formative academic and career states. However, in Sub-Saharan Africa, many institutions have not fully embraced this despite the benefits of mentorship. Aim The primary purpose...

As intermittent meteorological resources become increasingly vital in our energy system, it is crucial to better understand how a changing climate may affect weather variability and, in turn, influence future wind energy production. This study evaluates the performance of climate models in reproducing wind resources over Southern Africa (SA), and in assessing potential impacts of climate change. An ensemble of climate simulations is evaluated over SA, which includes simulations from three...

 The ICDP-DSeis (Drilling into Seismogenic zones of M2.0 – M5.5 earthquakes in deep South African gold mines) project recovered rock samples from a fracture zone that hosted the aftershocks of the 2014 Orkney earthquake (M5.5). The fracture zone was formed in an altered lamprophyre dike (Lamprophyre, hereafter) intruded into the Crown Formation (local name of altered basaltic andesite). One of the DSeis holes intersected another dike (named the Onstott dike) ~300 m east of...

Ground motion caused by near-source seismic waves from shallow earthquakes can be dangerous to vital infrastructure such as nuclear power plants. South Africa is a stable continental region (SCR), however significant seismicity is known to occur. Nearby Cape Town, and the Koeberg Nuclear Power Station, historical sources record an earthquake with a potential magnitude of 6.5 in 1809. On September 29th, 1969 the magnitude 6.3 Ceres-Tulbagh earthquake affected an area less than 100 kilometers...

Abstract Upon attaining freedom from the South African regime in 1990, Namibia adopted a constitution according to which access to education is a fundamental right. Before the Salamanca Statement in 1994 and Namibia's consequent ratification thereof, education in Namibia was mainly divided into two distinct streams: general education and special education. Post‐Salamanca, there has been a slight shift in the provision of education for learners with special educational needs in that special...

The issue of farmers' resilience to climate and natural resource degradation remains a major concern in Sahelian countries, including Burkina Faso. The aim of this study is to analyze the dynamics of farming practices in the province of Oubritenga in Burkina Faso, highlighting similarities and differences in climate-smart practices. To do this, a mixed method (qualitative and quantitative) was used, combining surveys, individual interviews and focus groups. The results indicate that...

The study examined work stress and service delivery among health workers in University of Benin Teaching Hospital Benin City. The study adopted descriptive research method. Data were collected through questionnaire, focus group discussion guide, in depth interview and secondary sources. The study revealed that work overload has nexus with service delivery of the health workers of University of Benin Teaching Hospital. The study recommended among other things that University of Benin Teaching...

This study aims to investigate Moroccan EFL teachers’ perceptions of the use of 21st-century skills in public school classes. Fifty-one Moroccan teachers from both middle school and high school participated in a survey to collect data. The results showed that Moroccan EFL teachers agreed that 21st-century skills are a positive plus in students’ competencies. The data analysis was done statistically using an online survey that was sent to them through emails and WhatsApp groups. Teachers’...

This research critically examines the recent policy intervention by the Somali government, focusing on the prohibition of single-use plastic sheets. The primary aim is to safeguard the environment and enhance public safety, aligning with global efforts to address plastic pollution and promote sustainable practices. The government's proactive approach urges manufacturers to explore alternative materials that prioritize community well-being and minimize environmental impact. This...

The internationalisation of higher education (IHE) has become a central agenda of Ethiopia's higher education institutions (HEIs). However, there is a dearth of information on whether IHE is an intentional and integrated endeavour. A framework is developed to investigate how strategic the internationalisation process is in public universities in Ethiopia, focusing on intentionality and integration. Data were collected using a survey from eleven public universities, semi-structured interviews...

Abstract Here, we present a seismic hazard evaluation for the August 7, 2020 (Mw 5.0) Mila earthquake that occurred in northeast Algeria. The study addresses the environmental factors that could contribute significantly to the highly damaging impact of this event. The following aspects were included in an interdisciplinary methodology that was adopted: the earthquake catalog, the coseismic geologic impacts with respect to the Environmental Seismic Intensity (ESI) scale standards, and...