Abstract

Africa is experiencing unprecedented economic growth that requires planners to understand the interactions between the social, economic, and ecological systems to ensure its sustainable development. The present paper uses the emergy method to analyse the Rwandan economy from 1975 to 2016. Emergy-based sustainability indicators were used to analyse and compare two distinct periods of economic growth: the pre- and post-Tutsi genocide periods. The results revealed that, by 2016, the total emergy use had increased by approximately 74% of the emergy recorded in 1975. The increase in total emergy use was associated with an increase in imports with contributions from 6.5 to 46.2% and the renewable resource contribution decrease from 93.5 to 53.8%. The emergy analysis, which covered 41 years, categorises Rwanda as a non-renewable resource-poor country. The total emergy use of the pre-genocide period was significantly lower than the post-genocide period. Based on the 2016 emergy self-support of 54% and the emergy sustainability index of 2.52, Rwanda has the highest import dependence compared to other developing countries listed in this paper and tends toward a developed country like Canada, Portugal, and so on. An imperative decision needs to be made in terms of the management of the economic system of Rwanda, as imports are becoming the highest impetus of the Rwandan economy but are also the top major cause of a long-run sustainability downfall. Thus, the present study recommends a scrutinised selection system of imports by increasing raw materials, particularly non-renewable resources, and by subsequently increasing the internal transformation to be exported. This recommendation is also applicable to other developing countries with similar non-renewable resource statuses.

Highlights

  • A country’s economic developments rest on its environment inputs

  • The total emergy use (U) increased by 74% from 3.63 × 1022 sej in 1975 to 6.31 × 1022 sej in 2016 (Table A2)

  • The emergy from free renewable resources (R) contribution to the U declined from 93.48% in 1975 to 53.76% in 2016

Read more

Summary

Introduction

There are negative externalities associated with these developments [1,2,3] These externalities become worse when the development rate increases and the ecological and environmental aspects are not carefully considered in economic decisions. Fund [5], Africa is second to Asia as the continent that is facing such an economic development and population growth These externalities may restore the degraded ecosystems [6]. The population in 1980 was estimated at 478 million, but it has since tripled to 1.2 billion and is projected to be 1.5 billion by 2025 and 2.4 billion by 2050 [10] Both the economy and population growth of Africa needs a substantial evaluation to properly document environmental sustainability and inform policymakers on that matter. Considering the economy and population growth during the past three decades, the country of Rwanda was chosen as the case study

Methods
Results
Conclusion
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call