Press Association: A climate change protest being staged on top of a power station chimney came to an end today. The nine environment activists who remained at Didcot Power Station, Oxfordshire, after breaking into the site on Monday came down of their own accord in the early hours of this morning. The four women and five men, who spent two nights on the emissions chimney, were arrested on suspicion of aggravated trespass, Thames Valley Police said. A further 11 people who staged a protest …