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Assignment: Environmental Sciences Topic: Evolution and
Sustaining Biodiversity
Environmental hazards are becoming a serious challenge in Zimbabwe, affecting the health and well-being of many people. These hazards, like air pollution and water contamination, threaten not only the environment but also human lives directly. In this paper, I will first identify and describe two major environmental hazards affecting Zimbabwe, and then I will discuss how protecting and restoring our natural ecosystems can help reduce the negative health effects caused by these hazards. Finally, I will suggest practical solutions and strategies, supported by scientific evidence and real-world examples, that Zimbabwe can implement to improve environmental conditions and promote better health for its people.
Major Environmental Hazards in Zimbabwe
Air Pollution : In urban areas like Harare, air pollution is a big issue mainly because of vehicle emissions, industrial activities, and the burning of solid fuels for cooking and heating (Mugadza & Chikodzi, 2020). This pollution contributes to respiratory problems such as asthma, bronchitis, and other lung diseases, especially affecting children and the elderly. Water Contamination : Access to clean water is a struggle for many Zimbabweans. Some will tell you that struggle is an understatement. Rivers and groundwater are often polluted due to poor waste management, agricultural runoff with pesticides, and untreated sewage (Muzenda et al., 2021). Drinking or using this contaminated water can cause diseases like cholera, dysentery, and other waterborne illnesses, posing a serious health risk.
Protecting and restoring ecosystem services to mitigate health effects in Zimbabwe takes the form of protecting wetlands and riparian zones, in Zimbabwe help filter pollutants before they reach water sources, improving water quality, and reducing waterborne diseases (Chari et al., 2022). Similarly, urban green spaces and trees improve air quality by absorbing pollutants and producing oxygen, which helps lower respiratory illness rates in cities like Harare. Restoring ecosystems also supports biodiversity, which strengthens natural processes that maintain balance in the environment, making communities more resilient to hazards like floods and droughts, which indirectly affect health.
Solutions to Reduce Health Risks and Improve Environmental Conditions
Improved Waste Management and Water Treatment: Zimbabwe can reduce water contamination by investing in better sewage treatment facilities and encouraging community-led waste management initiatives. For instance, the Chitungwiza municipality implemented a community recycling program that helped reduce river pollution (Muzenda et al., 2021). These efforts decrease the spread of waterborne diseases and protect public health. Additionally, promoting Clean Energy and Sustainable Transport to tackle air pollution, Zimbabwe should promote cleaner cooking fuels like LPG and renewable energy sources. I think also, improving public transport and encouraging non-motorized transport (walking, cycling) can cut down vehicle emissions. Studies have shown that cities with more green public transport systems experience better air quality and fewer respiratory health issues (Mugadza & Chikodzi, 2020).
References
Chari, F., Muzenda, E., & Chikodzi, D. (2022). The role of wetlands in improving water quality and supporting human health in Zimbabwe. Journal of Environmental Management , 310, 114741. https://doi.org/10.1016/j.jenvman.2022.
Mugadza, T., & Chikodzi, D. (2020). Urban air pollution and respiratory health risks in Harare, Zimbabwe. Atmospheric Pollution Research , 11(9), 1552–1560. https://doi.org/10.1016/j.apr.2020.06.
Muzenda, E., Chari, F., & Mavhunga, C. (2021). Community-led waste management and water quality improvement in Chitungwiza, Zimbabwe. Water Policy , 23(5), 1024–1038. https://doi.org/10.2166/wp.2021.
