#### Solution By Steps***Step 1: Understanding Blockchain's Role in Sustainability***Blockchain technology can enhance sustainability efforts by providing a transparent and immutable record of transactions, which can be crucial for tracking and verifying sustainable practices.***Step 2: Impact on Energy Footprint***By optimizing processes and ensuring transparency, blockchain can indirectly help in reducing a company's energy consumption, thus improving its energy footprint.***Step 3: Reduction in Computing Power***Blockchain can streamline operations, potentially reducing the need for extensive computing resources, which in turn can lower overall power usage.***Step 4: Enhancing Supply Chain Transparency***Blockchain enables detailed tracking of goods and materials, providing transparency into social and environmental impacts throughout the supply chain.***Step 5: Data Access and Marketing Efficiency***Access to detailed and reliable blockchain data can enhance marketing strategies by targeting growth markets more effectively, potentially reducing costs and improving sustainability.#### Final AnswerBlockchain supports sustainability efforts by improving energy efficiency, reducing computing power needs, enhancing supply chain transparency, and optimizing marketing strategies through better data access.#### Significance and ApplicationBlockchain's ability to provide transparent, immutable records makes it a valuable tool for verifying and improving sustainability practices across various industries. This technology not only aids in environmental conservation but also in promoting ethical business practices by ensuring transparency in operations.
