At a shareholders meeting on Friday, CEO Tim Cook angrily defended Apple’s environmentally-friendly practices against a request from the conservative National Center for Public Policy Research to drop those practices if they ever became unprofitable. NCPPR put forward a shareholder’s proposal asking Apple to disclose how much it spends on sustainability programs. If those costs detracted from Apple’s bottom line, the NCPPR demanded that Apple discontinue the programs and commit only to projects that are explicitly profitable.