It’s April, which means Earth Day is fast approaching. In recent years, major corporations have used Earth Day as a marketing tool. You do not need to buy a single product to celebrate Earth Day. Episodic Green Branding: Genuine commitment to sustainability should be year-round, not just a once-a-year marketing blitz coinciding with Earth Day. The official Earth Day campaign urges governments, industries, and businesses alike to accelerate the deployment of renewable energy technologies.