These also pose a threat to sustainable development. Furthermore, technical changes such as the increased fuel efficiency of automobiles and other recent electric car developments are just two of many examples of how technical factors change can help reduce environmental impact. In conclusion, countries must find ways to use resources effectively in order to preserve them. If necessary, resources can be processed to accumulate capital that can be used to prevent overuse of resources. «For countries that depend on non-renewable natural capital, transforming natural capital into other forms of wealth is the path to sustainable development. For many developing countries that are fortunate to have large endowments of natural resources, it is precisely the failure of this transformation that threatens the sustainability of their development paths. For example, South Africa has an abundance of gold as a natural resource that has dominated its economy for years. However, South Africa still remains a poor country despite having this resource because it cannot help but transform it into intangible capital on its own due to the lack of skilled labor. Furthermore, educating people and learning to be independent of foreign aid is another path towards sustainable development