International cooperation can immensely support sustainable economic growth. Collaborative efforts can lead to the sharing of best practices, technologies, and resources. For example, more developed nations can provide technological aid to developing countries, helping them leapfrog stages of industrialisation that are harmful to the environment. Additionally, joint research initiatives can lead to breakthroughs that favour sustainability. Trade agreements can be tailored to promote the exchange of sustainable goods and services. Furthermore, international bodies can set sustainability standards that member nations strive to achieve, ensuring growth doesn't come at the environment's expense.

Education plays a pivotal role in sustainable economic growth. A well-educated populace is more likely to innovate, start businesses, and contribute positively to the economy. Education equips individuals with the skills required for the jobs of tomorrow, ensuring that the workforce remains relevant as industries evolve. Moreover, an educated society can better understand and support sustainable practices, making choices that favour long-term growth over short-term gains. On a more fundamental level, education empowers individuals, leading to reduced inequalities. This ensures a more balanced and sustainable growth trajectory, where the benefits of economic progress are shared more broadly among the population.

Overpopulation can strain a nation's resources, potentially hampering sustainable economic growth. As the population swells, there's increased demand for housing, food, energy, and other essentials. If not managed efficiently, this can lead to rapid depletion of natural resources, causing long-term environmental and economic harm. Overpopulation can strain public services and infrastructure, leading to reduced quality of living. The increased competition for jobs might suppress wages, widening income disparities. On a macroeconomic scale, overpopulation without adequate employment opportunities might lead to reduced consumption, slowing economic growth. For growth to be sustainable in densely populated areas, meticulous planning and management are crucial.

Technological innovation is a driving force behind sustainable economic growth. It can lead to improved productivity and efficiency across sectors. Innovations in green technology, for instance, provide cleaner, eco-friendly alternatives to traditional practices, thereby reducing environmental degradation. Technological advancements also spur new industries, creating jobs and diversifying the economy. For example, the rise of the tech industry and renewable energy sectors in many countries. Moreover, with improved technology, nations can optimise the use of their resources, leading to less waste and better allocation. However, it's crucial that technological advancements are inclusive, benefitting all sections of society, to ensure growth remains sustainable.

Infrastructure developments, when planned strategically, can considerably boost sustainable economic growth. Good transport networks, for instance, can reduce transit times and costs, increasing the efficiency of the distribution of goods and services. This promotes trade and encourages investment. Similarly, improved energy infrastructure, especially with a focus on renewables, can support sustainable industrialisation and urbanisation without causing significant environmental harm. Quality infrastructure in health and education, on the other hand, can lead to an improved quality of life and a more skilled workforce. In essence, while infrastructure requires upfront investment, its long-term contributions to sustainable growth can outweigh the initial costs manifold.