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Climate change in Tanzania

February 15, 2024

Climate change in Tanzania is affecting the natural environment and residents of Tanzania. Temperatures in Tanzania are rising with a higher likelihood of intense rainfall events (resulting in flooding) and of dry spells (resulting in droughts).[1][2]

Tanzanian rice farmer - agricultural activities will be affected by climate change.

Water scarcity has become an increasing problem and many major water bodies have had extreme drops in water levels, including Lake Victoria, Lake Tanganyika, Lake Jipe, and Lake Rukwa.[3][1] Tanzania's agricultural sector, which employs over half of the population, is particularly vulnerable as farmers are predominantly dependent on rainfed agriculture.[3] On the other hand, increasing intense rainfall events have resulted in flooding across the region, which has damaged infrastructure and livelihoods.[4] A high percentage of the population of Tanzania lives along the coast and are dependent on fisheries and Aquaculture[3] Sea level rise and changes in the quality of water are expected to impact these sectors and be a continued challenge for the country.[3]

Tanzania produced a National Adaptation Programmes of Action (NAPAs) in 2007 as mandated by the United Nations Framework Convention on Climate Change. The NAPA identifies the sectors of agriculture, water, health, and energy as Tanzania's most vulnerable sectors to climate change.[5] In 2012, Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impact of climate change and climate variability on the country’s social, economic and physical environment.[6] In 2015, Tanzania submitted its Intended Nationally Determined Contributions (INDC).[7]

Impacts on the natural environment edit

 
Fishing boat off Dar es Salaam - fishing will be affected by changes to ecosystems due to climate change.

Between 1981 and 2016 there are marked areas of drying in parts of northeast and much of southern Tanzania. In contrast, moderate wetting trends occurred in central Tanzania and stronger wetting trends in the northwest of the country.[2] A clear warming trend is apparent in annual temperature. By the 2090s projected warming is in the range of 1.6 to 5.0 °C, also evenly distributed across the country.[2] For rainfall there is strong agreement for decreases in the mean number of rain days and increases in the amount of rainfall on each rainy day (the ‘rainfall intensity’). Taken together these changes suggest more variable rainfall, with both higher likelihood of dry spells (such as droughts) and a higher likelihood of intense rainfall events (often associated with flooding).[2] Climate change impacts of severe droughts, floods, livestock deaths, crop failures and outbreak of disease (such as cholera and malaria) are likely to be regularly observed.[8]

Impacts on people edit

Economic impacts edit

Agriculture edit

Agriculture (including livestock) is the dominant sector in the Tanzanian economy, providing livelihood, income and employment.[9] It is also identified as the sector most vulnerable to climate change.[5] An increase in temperature by 2 °C - 4 °C is likely to alter the distribution of Tanzania's seven agro-ecological zones. Areas that used to grow perennial crops would be suitable for annual crops. Climate change would tend to accelerate plant growth and reduce the length of growing seasons.[5] Vulnerability in the agricultural sector is likely to include decreased crop production of different crops exacerbated by climatic variability and unpredictability of seasonality, erosion of natural resource base and environmental degradation.[5]

A 2011 study found that crop yields are both affected by heating and increased variability. An increase in temperature by 2 °C during the growing season as projected by 2050 will likely reduce yields of rice, sorghum and maize by 7.6%, 8.8% and 13% respectively in Tanzania. A 20% increase in precipitation variability between seasons was found to decrease yields of rice, sorghum and maize by 7.6%, 7.2% and 4.2% respectively by 2050.[10] For example a severe drought in Dodoma resulted in an 80% decrease in harvest.[11]

Health impacts edit

There are a number of climate-sensitive diseases in Tanzania that may become more prevalent during drought and flooding.[12][11] Water related diseases such as cholera and malaria may increase in Tanzania due to climate change.[12]

In parts of Tanzania, cholera outbreaks have been linked with increased rainfall.[13] Cholera outbreaks in North East, South East, Lake Victoria basin and coastal areas of Tanzania were due to high rainfall.[13][14] Research has also shown that initial risk of cholera increased by 15% to 19% for every 1 °C temperature increase.[15] It was further projected that in 2030 the total costs of cholera attributable to climate change variability will be in the range of 0.32% to 1.4% of national GDP for Tanzania.[15][16]

The incidence of malaria are known to be highest during heavy rainfall and high temperatures as it makes mosquitoes’ habitats (such as ponds, pools, wells or bores, streams, rivers and canals) suitable breeding sites.[17][14] For example, a study conducted in Lushoto district, Tanzania, reported that malaria cases were prominent during high rainfall seasons and there was a link to an increase in temperatures.[14]

Mitigation and adaptation edit

Policies and legislation for adaptation edit

 
Cleaning solar panels

Tanzania produced a National Adaptation Programmes of Action (NAPAs) in 2007 as mandated by the United Nations Framework Convention on Climate Change. The overall vision of Tanzania’s NAPA is to identify immediate and urgent climate change adaptation actions that are robust enough to lead to long-term sustainable development in a changing climate.[5] The NAPA identifies the sectors of agriculture, water, health, and energy as Tanzania's most vulnerable sectors to climate change.[5] Dissemination and expansion of low-cost, readily available technology such as fuel wood-burning stoves, as well as continued investment in alternative energy sources such as wind and solar.[16]

Tanzania has outlined priority adaptation measures in their NAPA, and various national sector strategies and research outputs.[18] The NAPA has been successful at encouraging climate change mainstreaming into sector policies in Tanzania; however, the cross-sectoral collaboration crucial to implementing adaptation strategies remains limited due to institutional challenges such as power imbalances, budget constraints and an ingrained sectoral approach.[19] Most of the projects in Tanzania concern agriculture and water resource management (irrigation, water saving, rainwater collection); however, energy and tourism also play an important role.[20]

In 2012, Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impacts of climate change and climate variability on the country’s social, economic and physical environment.[6] In 2015, Tanzania submitted its Intended Nationally Determined Contributions (INDC).[7]

See also edit

References edit

  1. ^ a b "Tanzania". Climatelinks. Retrieved 2020-11-27.
  2. ^ a b c d Future Climate for Africa. "Future climate projections for Tanzania" (PDF). Future Climate for Africa.
  3. ^ a b c d "Tanzania | UNDP Climate Change Adaptation". www.adaptation-undp.org. Retrieved 2020-11-27.
  4. ^ "Tanzania: Floods in Dar es Salaam - Emergency Plan of Action Final Report n° MDRTZ024 / PTZ040 - United Republic of Tanzania". ReliefWeb. Retrieved 2020-11-27.
  5. ^ a b c d e f United Republic of Tanzania (2007). "National Adaptation Programme of Action" (PDF). UNFCCC.
  6. ^ a b . www.preventionweb.net. Archived from the original on 2021-04-17. Retrieved 2020-11-27.
  7. ^ a b United Republic of Tanzania (2015). "Tanzania Intended Nationally Determined Contributions" (PDF).
  8. ^ Levira, Pamela William (2009-02-01). "Climate change impact in agriculture sector in Tanzania and its mitigation measure". IOP Conference Series: Earth and Environmental Science. 6 (37): 372049. Bibcode:2009E&ES....6K2049L. doi:10.1088/1755-1307/6/37/372049. ISSN 1755-1315. S2CID 250673924.
  9. ^ "New Agriculturist: Country profile - Tanzania". www.new-ag.info. Retrieved 2020-11-28.
  10. ^ Rowhani, Pedram; Lobell, David B.; Linderman, Marc; Ramankutty, Navin (2011-04-15). "Climate variability and crop production in Tanzania". Agricultural and Forest Meteorology. 151 (4): 449–460. Bibcode:2011AgFM..151..449R. doi:10.1016/j.agrformet.2010.12.002. ISSN 0168-1923.
  11. ^ a b Shemsanga, Ceven; Muzuka, A. N. N.; Martz, L.; Komakech, H.; Omambia, Anne Nyatichi (2017), Chen, Wei-Yin; Suzuki, Toshio; Lackner, Maximilian (eds.), "Statistics in Climate Variability, Dry Spells, and Implications for Local Livelihoods in Semiarid Regions of Tanzania: The Way Forward", Handbook of Climate Change Mitigation and Adaptation, Cham: Springer International Publishing, pp. 801–848, doi:10.1007/978-3-319-14409-2_66, ISBN 978-3-319-14409-2, retrieved 2020-11-29
  12. ^ a b Mboera, Leonard E. G.; Mayala, Benjamin K.; Kweka, Eliningaya J.; Mazigo, Humphrey D. (2011). "Impact of climate change on human health and health systems in Tanzania: a review". Tanzania Journal of Health Research. 13 (5 Suppl 1): 407–426. doi:10.4314/thrb.v13i5.10. ISSN 1821-6404. PMID 26591995.
  13. ^ a b Hulme, Mike; Doherty, Ruth; Ngara, Todd; New, Mark; Lister, David (2001-08-15). "African climate change: 1900-2100". Climate Research. 17 (2): 145–168. Bibcode:2001ClRes..17..145H. doi:10.3354/cr017145. ISSN 0936-577X.
  14. ^ a b c Ojija, Fredrick; Abihudi, Siri; Mwendwa, Beatus; Leweri, Cecilia M.; Chisanga, Kafula (2017-07-28). "The Impact of Climate Change on Agriculture and Health Sectors in Tanzania: A review". International Journal of Environment, Agriculture and Biotechnology. 2 (4): 1758–1766. doi:10.22161/ijeab/2.4.37.
  15. ^ a b Trærup, Sara L. M.; Ortiz, Ramon A.; Markandya, Anil (2011-11-28). "The Costs of Climate Change: A Study of Cholera in Tanzania". International Journal of Environmental Research and Public Health. 8 (12): 4386–4405. doi:10.3390/ijerph8124386. ISSN 1660-4601. PMC 3290983. PMID 22408580.
  16. ^ a b Shemsanga, Ceven; Omambia, Anne Nyatichi (2010). "The Cost of Climate Change in Tanzania: Impacts and Adaptation". ResearchGate. Retrieved 2023-04-09.
  17. ^ Ahern, Mike; Kovats, R. Sari; Wilkinson, Paul; Few, Roger; Matthies, Franziska (2005-07-01). "Global Health Impacts of Floods: Epidemiologic Evidence". Epidemiologic Reviews. 27 (1): 36–46. doi:10.1093/epirev/mxi004. ISSN 1478-6729. PMID 15958425.
  18. ^ USAID. "Climate Change Adaptation in Tanzania" (PDF). USAID.
  19. ^ Pardoe, Joanna; Conway, Declan; Namaganda, Emilinah; Vincent, Katharine; Dougill, Andrew J.; Kashaigili, Japhet J. (9 August 2018). "Climate change and the water–energy–food nexus: insights from policy and practice in Tanzania". Climate Policy. 18 (7): 863–877. doi:10.1080/14693062.2017.1386082. ISSN 1469-3062.
  20. ^ "United Republic of Tanzania | UNDP Climate Change Adaptation". www.adaptation-undp.org. Retrieved 8 August 2019.

February 15, 2024
climate, change, tanzania, affecting, natural, environment, residents, tanzania, temperatures, tanzania, rising, with, higher, likelihood, intense, rainfall, events, resulting, flooding, spells, resulting, droughts, tanzanian, rice, farmer, agricultural, activ. Climate change in Tanzania is affecting the natural environment and residents of Tanzania Temperatures in Tanzania are rising with a higher likelihood of intense rainfall events resulting in flooding and of dry spells resulting in droughts 1 2 Tanzanian rice farmer agricultural activities will be affected by climate change Water scarcity has become an increasing problem and many major water bodies have had extreme drops in water levels including Lake Victoria Lake Tanganyika Lake Jipe and Lake Rukwa 3 1 Tanzania s agricultural sector which employs over half of the population is particularly vulnerable as farmers are predominantly dependent on rainfed agriculture 3 On the other hand increasing intense rainfall events have resulted in flooding across the region which has damaged infrastructure and livelihoods 4 A high percentage of the population of Tanzania lives along the coast and are dependent on fisheries and Aquaculture 3 Sea level rise and changes in the quality of water are expected to impact these sectors and be a continued challenge for the country 3 Tanzania produced a National Adaptation Programmes of Action NAPAs in 2007 as mandated by the United Nations Framework Convention on Climate Change The NAPA identifies the sectors of agriculture water health and energy as Tanzania s most vulnerable sectors to climate change 5 In 2012 Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impact of climate change and climate variability on the country s social economic and physical environment 6 In 2015 Tanzania submitted its Intended Nationally Determined Contributions INDC 7 Contents 1 Impacts on the natural environment 2 Impacts on people 2 1 Economic impacts 2 1 1 Agriculture 2 2 Health impacts 3 Mitigation and adaptation 3 1 Policies and legislation for adaptation 4 See also 5 ReferencesImpacts on the natural environment edit nbsp Fishing boat off Dar es Salaam fishing will be affected by changes to ecosystems due to climate change Between 1981 and 2016 there are marked areas of drying in parts of northeast and much of southern Tanzania In contrast moderate wetting trends occurred in central Tanzania and stronger wetting trends in the northwest of the country 2 A clear warming trend is apparent in annual temperature By the 2090s projected warming is in the range of 1 6 to 5 0 C also evenly distributed across the country 2 For rainfall there is strong agreement for decreases in the mean number of rain days and increases in the amount of rainfall on each rainy day the rainfall intensity Taken together these changes suggest more variable rainfall with both higher likelihood of dry spells such as droughts and a higher likelihood of intense rainfall events often associated with flooding 2 Climate change impacts of severe droughts floods livestock deaths crop failures and outbreak of disease such as cholera and malaria are likely to be regularly observed 8 Impacts on people editEconomic impacts edit Agriculture edit Agriculture including livestock is the dominant sector in the Tanzanian economy providing livelihood income and employment 9 It is also identified as the sector most vulnerable to climate change 5 An increase in temperature by 2 C 4 C is likely to alter the distribution of Tanzania s seven agro ecological zones Areas that used to grow perennial crops would be suitable for annual crops Climate change would tend to accelerate plant growth and reduce the length of growing seasons 5 Vulnerability in the agricultural sector is likely to include decreased crop production of different crops exacerbated by climatic variability and unpredictability of seasonality erosion of natural resource base and environmental degradation 5 A 2011 study found that crop yields are both affected by heating and increased variability An increase in temperature by 2 C during the growing season as projected by 2050 will likely reduce yields of rice sorghum and maize by 7 6 8 8 and 13 respectively in Tanzania A 20 increase in precipitation variability between seasons was found to decrease yields of rice sorghum and maize by 7 6 7 2 and 4 2 respectively by 2050 10 For example a severe drought in Dodoma resulted in an 80 decrease in harvest 11 Health impacts edit There are a number of climate sensitive diseases in Tanzania that may become more prevalent during drought and flooding 12 11 Water related diseases such as cholera and malaria may increase in Tanzania due to climate change 12 In parts of Tanzania cholera outbreaks have been linked with increased rainfall 13 Cholera outbreaks in North East South East Lake Victoria basin and coastal areas of Tanzania were due to high rainfall 13 14 Research has also shown that initial risk of cholera increased by 15 to 19 for every 1 C temperature increase 15 It was further projected that in 2030 the total costs of cholera attributable to climate change variability will be in the range of 0 32 to 1 4 of national GDP for Tanzania 15 16 The incidence of malaria are known to be highest during heavy rainfall and high temperatures as it makes mosquitoes habitats such as ponds pools wells or bores streams rivers and canals suitable breeding sites 17 14 For example a study conducted in Lushoto district Tanzania reported that malaria cases were prominent during high rainfall seasons and there was a link to an increase in temperatures 14 Mitigation and adaptation editPolicies and legislation for adaptation edit nbsp Cleaning solar panelsTanzania produced a National Adaptation Programmes of Action NAPAs in 2007 as mandated by the United Nations Framework Convention on Climate Change The overall vision of Tanzania s NAPA is to identify immediate and urgent climate change adaptation actions that are robust enough to lead to long term sustainable development in a changing climate 5 The NAPA identifies the sectors of agriculture water health and energy as Tanzania s most vulnerable sectors to climate change 5 Dissemination and expansion of low cost readily available technology such as fuel wood burning stoves as well as continued investment in alternative energy sources such as wind and solar 16 Tanzania has outlined priority adaptation measures in their NAPA and various national sector strategies and research outputs 18 The NAPA has been successful at encouraging climate change mainstreaming into sector policies in Tanzania however the cross sectoral collaboration crucial to implementing adaptation strategies remains limited due to institutional challenges such as power imbalances budget constraints and an ingrained sectoral approach 19 Most of the projects in Tanzania concern agriculture and water resource management irrigation water saving rainwater collection however energy and tourism also play an important role 20 In 2012 Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impacts of climate change and climate variability on the country s social economic and physical environment 6 In 2015 Tanzania submitted its Intended Nationally Determined Contributions INDC 7 See also editClimate change in AfricaReferences edit a b Tanzania Climatelinks Retrieved 2020 11 27 a b c d Future Climate for Africa Future climate projections for Tanzania PDF Future Climate for Africa a b c d Tanzania UNDP Climate Change Adaptation www adaptation undp org Retrieved 2020 11 27 Tanzania Floods in Dar es Salaam Emergency Plan of Action Final Report n MDRTZ024 PTZ040 United Republic of Tanzania ReliefWeb Retrieved 2020 11 27 a b c d e f United Republic of Tanzania 2007 National Adaptation Programme of Action PDF UNFCCC a b Tanzania National climate change strategy National Policy Plans amp Statements PreventionWeb net www preventionweb net Archived from the original on 2021 04 17 Retrieved 2020 11 27 a b United Republic of Tanzania 2015 Tanzania Intended Nationally Determined Contributions PDF Levira Pamela William 2009 02 01 Climate change impact in agriculture sector in Tanzania and its mitigation measure IOP Conference Series Earth and Environmental Science 6 37 372049 Bibcode 2009E amp ES 6K2049L doi 10 1088 1755 1307 6 37 372049 ISSN 1755 1315 S2CID 250673924 New Agriculturist Country profile Tanzania www new ag info Retrieved 2020 11 28 Rowhani Pedram Lobell David B Linderman Marc Ramankutty Navin 2011 04 15 Climate variability and crop production in Tanzania Agricultural and Forest Meteorology 151 4 449 460 Bibcode 2011AgFM 151 449R doi 10 1016 j agrformet 2010 12 002 ISSN 0168 1923 a b Shemsanga Ceven Muzuka A N N Martz L Komakech H Omambia Anne Nyatichi 2017 Chen Wei Yin Suzuki Toshio Lackner Maximilian eds Statistics in Climate Variability Dry Spells and Implications for Local Livelihoods in Semiarid Regions of Tanzania The Way Forward Handbook of Climate Change Mitigation and Adaptation Cham Springer International Publishing pp 801 848 doi 10 1007 978 3 319 14409 2 66 ISBN 978 3 319 14409 2 retrieved 2020 11 29 a b Mboera Leonard E G Mayala Benjamin K Kweka Eliningaya J Mazigo Humphrey D 2011 Impact of climate change on human health and health systems in Tanzania a review Tanzania Journal of Health Research 13 5 Suppl 1 407 426 doi 10 4314 thrb v13i5 10 ISSN 1821 6404 PMID 26591995 a b Hulme Mike Doherty Ruth Ngara Todd New Mark Lister David 2001 08 15 African climate change 1900 2100 Climate Research 17 2 145 168 Bibcode 2001ClRes 17 145H doi 10 3354 cr017145 ISSN 0936 577X a b c Ojija Fredrick Abihudi Siri Mwendwa Beatus Leweri Cecilia M Chisanga Kafula 2017 07 28 The Impact of Climate Change on Agriculture and Health Sectors in Tanzania A review International Journal of Environment Agriculture and Biotechnology 2 4 1758 1766 doi 10 22161 ijeab 2 4 37 a b Traerup Sara L M Ortiz Ramon A Markandya Anil 2011 11 28 The Costs of Climate Change A Study of Cholera in Tanzania International Journal of Environmental Research and Public Health 8 12 4386 4405 doi 10 3390 ijerph8124386 ISSN 1660 4601 PMC 3290983 PMID 22408580 a b Shemsanga Ceven Omambia Anne Nyatichi 2010 The Cost of Climate Change in Tanzania Impacts and Adaptation ResearchGate Retrieved 2023 04 09 Ahern Mike Kovats R Sari Wilkinson Paul Few Roger Matthies Franziska 2005 07 01 Global Health Impacts of Floods Epidemiologic Evidence Epidemiologic Reviews 27 1 36 46 doi 10 1093 epirev mxi004 ISSN 1478 6729 PMID 15958425 USAID Climate Change Adaptation in Tanzania PDF USAID Pardoe Joanna Conway Declan Namaganda Emilinah Vincent Katharine Dougill Andrew J Kashaigili Japhet J 9 August 2018 Climate change and the water energy food nexus insights from policy and practice in Tanzania Climate Policy 18 7 863 877 doi 10 1080 14693062 2017 1386082 ISSN 1469 3062 United Republic of Tanzania UNDP Climate Change Adaptation www adaptation undp org Retrieved 8 August 2019 Retrieved from https en wikipedia org w index php title Climate change in Tanzania amp oldid 1189717906, wikipedia, wiki, book, books, library,

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