Telegraph: He’s the second most senior member of one of the highest-consuming families on the planet, and yet he is about to launch a campaign to persuade us to “lead more sustainable lives”. It’s no surprise that the Prince of Wales is already being berated for so-called “Let them eat Duchy Original cake” comments as he embarks on the most extraordinary two weeks of public advocacy of his 40 years of environmental campaigning. It starts on Monday with a five-day tour around the country, a …