<p>The development of an environment that is sustainable requires infrastructure. Energy structure is necessary, along with infrastructure. Energy structure must be achieved for the desired infrastructure to exist. Therefore, it is interesting to look into the nexus of energy structure, infrastructure, and carbon emissions in, “Brazil, Russia, India, China, and South Africa (BRICS)” countries under the growth and environment hypothesis. To empirically estimate the said nexus, robust econometric techniques are adopted. Findings suggest the supportive role of infrastructure and energy structure in abating carbon emissions. The BRICS economies need to enhance the investment in infrastructure and energy structure. Findings are also robust to the short- and long-run policy implications. This study is a step forward toward the Sustainable Development Goals.</p>