Group 1 - The Shanghai government is establishing a new model for marine waste management, focusing on collaboration between government, enterprises, and society to create a sustainable system for marine plastic pollution [1] - The "Shanghai Marine Alliance" has been launched to facilitate dialogue and cooperation among various stakeholders in the marine waste industry chain [1][2] - Companies like Baosteel, China Agricultural Development Bank, Unilever, and PepsiCo are among the first members of the "Shanghai Marine Alliance," playing key roles in transforming marine waste into valuable resources [2] Group 2 - The use of blockchain technology by Zhejiang Blue View Technology Co., Ltd. is highlighted for tracking marine waste from collection to recycling, ensuring data integrity and preventing fraudulent environmental claims [2] - The Shanghai Carbon Benefit Platform has introduced a system where citizens can earn carbon credits for participating in green activities, which can be redeemed for various benefits [2] - Research is being conducted to link marine waste management with carbon benefits, potentially allowing citizens participating in beach clean-up activities to earn carbon credits [2]