The former Archbishop of York, Lord Sentamu, hit out at 'arrogant' Shell after he was prevented from delivering a Christian climate letter to the headquarters of the oil giant on behalf of Christian charities. When Sentamu, now chair of Christian Aid, knocked on the building entrance in central London, he was refused entry. The letter, addressed to Shell’s chief executive, was signed by Green Christian, Christian Climate Action, Tearfund, A Rocha UK, Christian Aid, Cafod, and Operation Noah. It calls on Shell to stop all new fossil fuel exploration and extraction and asks for a meeting to discuss the issue. Lord Sentamu said, ‘Climate change is the greatest insidious, brutal and indiscriminate force of our time. Those suffering the most have done the least to cause it. Continuing to search for new sources of fossil fuels, despite explicit warnings from the International Energy Agency, is an offence against humanity.’