Climate change is already impacting lives across the African continent. Climate change indicators are evident in the changes in temperature affecting health, food production, availability of water and even the security of the African people.
Whiles some parts of Africa around the Sahel region and Southern Africa are experiencing low rainfall, Central Africa has seen an increase. It is noted that floods and drought disasters have doubled over the past 25 years. The extremes of weather are what is being experienced now under climate change.
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350africa.org posts a list of climate change indicators which is worth sharing to alert and appeal for a change in the way we treat our environment, especially in farming.
1. Impacts on weather patterns
Flooding
Flooding is the most prevalent disaster in North Africa, the second most common in East, South and Central Africa, and the third most common in West Africa (AWDR, 2006).
In North Africa, the 2001 disastrous flood in northern Algeria resulted in about 800 deaths and economic loss of about $400 million. In Mozambique, the 2000 flood (worsened by two cyclones) caused 800 deaths, affected almost 2 million people of which about 1 million needed food, 329,000 people were displaced and agricultural production land was destroyed (AWDR, 2006).
Drought
Between July 2011 and mid-2012, a severe drought affected the entire East Africa region and was said to be “the worst drought in 60 years.”
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2. Impacts on Water Supply and Quality
Observable effects of climate change on water resources in Africa include flooding, drought, change in the distribution of rainfall, the drying-up of rivers, melting of glaciers and the receding of bodies of water.
West Africa
Entire economies suffer when the water levels of Africa’s huge rivers drop. Ghana, for example, has become totally reliant on the hydro-electric output of the Akosombo dam on the river Volta. Mali is dependent on the river Niger for food, water and transport. However, great stretches of the river is now facing environmental devastation as a result of pollution. In Nigeria, half the population has no access to clean water.
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3. Impacts on Agriculture and Food
Across Africa, the landscape is changing. Droughts, heat stress and flooding have led to a reduction in crop yields and livestock productivity.
4. Impacts on Human Health
Climate-sensitive diseases and health impacts can be high in poor countries that have minimal resources to treat and prevent illness. Examples of climate-related health impacts include:
- Frequent and severe heat stress linked to sustained increases in temperature
- The reduction in air quality that often accompanies a heat wave can lead to breathing problems and worsen respiratory diseases.
- Climate change indicators impacting on agriculture and other food systems increases rates of malnutrition and contributes to poverty — “With one in four people still undernourished in sub-Saharan Africa, climate change impacts make it even more difficult for governments across the region to improve food security and help reduce tensions.”
- The spread of Malaria may increase in areas projected to receive more precipitation and flooding. Increases in rainfall and temperature can cause spreading of dengue fever
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5. Impacts on Shelter
Severe flooding and intense droughts have led to the destruction of many homes, shelters and villages across Africa. Conflicts over resources also exacerbate these impacts and, in turn, contribute to the ongoing migration within and between countries in Africa.
Extreme events displace large amounts of people, especially those who are unable to respond and rebuild after disasters, due to lack of resources.
6. Impacts on Vulnerable Population
Women, children and the elderly are more vulnerable to climate change impacts across Africa. Women labourers often experience additional duties as caregivers and as well as from societal responses to climate change after extreme weather events (eg, male migration).
The water scarcity places an additional burden on African women, who walk hours and sometimes even days, to fetch it. (IPCC, 2014)
7. Impacts on National Security
Climate change impacts have the potential to exacerbate national security issues and increase the number of international conflicts. Conflicts often occur over the use of already limited natural resources, fertile ground and water. Access to consistent and dependable sources of water is greatly valued in many African regions. However, changes in the timing and intensity of rainfall have threatened water availability and are causing conflicts over this limited resource (IPCC, 2014).
“A United Nations report predicts that access to water may be the single biggest cause of conflict and war in Africa in the next 25 years. Such wars are most likely to be in countries where rivers or lakes are shared by more than one country.”
A young man from the Nyangatom tribe patrols a water access point on the border between Ethiopia and Kenya. The site is one of the ongoing conflicts between the Nyangatom, the Kenyan border police, and the Turkana tribe. (Image © vassar.edu)
One of the climate change indicators is the changes in precipitation and temperature are already affecting crop yields in Sub-Saharan Africa. This has resulted in food shortages, that have triggered cross-border migration and intraregional conflicts, which has sparked political instability in Nigeria for example.
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8. Impacts on ecosystems
Climate change has already led to changes in freshwater and marine ecosystems in eastern and southern Africa, and terrestrial ecosystems in southern and western Africa. The extreme weather events have demonstrated the vulnerability of some of South Africa’s ecosystems. The migration patterns, geographic range and seasonal activity of many terrestrial and marine species have shifted in response to climate change. The abundance and interaction among species have also changed (IPCC, 2014).
Despite the fact that the African continent has contributed the least to anthropogenic factors causing climate change, Africa is the worst hit.
Source: 350africa.org
