for two consecutive years, in2018 and 2019. The Times Higher Education World University Rankings placed it in the 301—350 group for 800 university rankings, compared with 351—400 the previous year, and the QS World University Rankings placed it at the 432nd position for 2019, compared with 481—490 of the previous year. In 2015, UK employers from "predominantly business, IT and engineering sectors" listed Aberystwyth equal 49th in their 62-place employability rankings for UK graduates, according to a Times Higher Education report. Aberystwyth University was rated in the top ten of UK higher education institutions for overall student satisfaction in the 2016 National Student Survey (NSS). Aberystwyth University was shortlisted in four categories in the Times Higher Education Leadership and Management Awards (THELMAs) (2015). Aberystwyth University has been awarded the Silver Award under the Corporate Health Standard (CHS), the quality mark for workplace health promotion run by Welsh Government. The university has been awarded an Athena SWAN Charter Award, recognising commitment to advancing women's careers in science, technology, engineering, maths and medicine (STEMM) in higher education and research. In 2007, the university came under criticism for its record on sustainability, ranking 97th out of 106 UK higher education institutions in that year's Green League table. In 2012 the university was listed in the table's "Failed, no award" section, ranking equal 132nd out of 145. In 2013 it ranked equal 135th out of 143, and was listed again as "Failed, no award". Following the university's initiatives to address sustainability, it received an EcoCampus Silver Phase award in October 2014. In October 2015, the university's Penglais Campus became the first university campus in Wales to achieve the Green Flag Award. The Green Flag Award is a UK-wide partnership, delivered in Wales by Keep Wales Tidy with support from Natural Resources Wales, and is the mark of a high quality park or green space. In 2013, the University and College Union alleged bullying behaviour by Aberystwyth University managers, and said staff were fearful for their jobs. The university president, Sir Emyr Jones Parry, said in a BBC radio interview, "I don't believe the views set out are representative and I don't recognise the picture." He also said, "Due process is rigorously applied in Aberystwyth." The economist John Cable resigned his emeritus professorship, describing the university's management as "disproportionate, aggressive and confrontational". The singer Peter Karrie resigned his honorary fellowship in protest, he said, at