Marketing practitioners and consumers, in their attempts to positively impacts on the environment are becoming increasingly and progressively sensitive to the need to switch to green products and services. Correspondingly, green advertising has emerged which speaks for growing market for sustainable and socially responsible goods. This paper as a theoretical researchseeks to provide a comprehensive literature review of green advertising, green consumers, environmental awareness and environmental sustainability. It therefore recommends the practice of Green advertising, especially by business firms in Nigeria, to enhance environmental sustainability.