Campaigners have failed in an attempt to force fast food chain McDonald’s to reveal its use of plastic straws. The proposal was put forward by a small shareholder and backed by pressure group SumOfUs. However, 92% of shareholders rejected the idea. McDonald’s reportedly said that the measure would be “unnecessary”. Plastic straws have been targeted by environmental pressure groups as part of a wider effort to cut single-use plastic packaging. This week, hotel group Hilton announced it would be eliminating plastic straws and bottles worldwide. Tottenham Hotspur’s new stadium, which is set to open later this year, will also ban…