Berkshire Hathaway Inc. shareholders have overwhelmingly rejected six proposals related to environmental and social policy issues, including climate change, diversity, and operations in China, at Warren Buffett's conglomerate. The proposals, opposed by Buffett and the board, were defeated by margins greater than 4-to-1 during the annual shareholders' meeting. Specific proposals included creating a board-level committee to monitor safety at the BNSF railroad unit and requiring annual reports on the company's dependency on Chinese operations.