14:00Ladies of LettersLadies of Letters Go GreenEpisode 2BBC Radio 4 Extra Duration: 15 minutes Tue 21st Jun 2011, 14:00 on BBC Radio 4 ExtraVera offers to help Irene sort out her Auntie's artefacts - and writes to Al Gore. With Patricia Routledge and Prunella Scales.GenresComedySitcomsBrandLadies of LettersSeriesLadies of Letters: Ladies of Letters Go Green Source: BBC Online