[2013-03-26] 2012 – a bad year for butterflies? + http://www.bbc.co.uk/news/uk-21939189 + http://www.bbc.co.uk/news/science-environment-21934075 + http://www.ceh.ac.uk/news/news_archive/2012-UKBMS-results-butterflies_2013_20.html + http://www.ukbms.org/ + http://butterfly-conservation.org/48-3680/2012-a-disaster-year-for-uk-butterflies.html + http://www.ukbms.org/docs/reports/2012/UK%20Summary%20of%20changes%20Table%202012.pdf with 2012butterfliesunited_kingdom
[2013-03-28] Coldest March for the UK since 1962 + http://metofficenews.wordpress.com/2013/03/28/met-office-figures-show-we-are-on-course-for-coldest-march-in-over-50-years/ + http://www.bbc.co.uk/news/uk-21910180 + http://www.youtube.com/watch?v=CuFz7w1A2lc + http://www.wunderground.com/blog/weatherhistorian/comment.html?entrynum=138 + http://www.pik-potsdam.de/news/in-short/kalter-maerz + http://metofficenews.wordpress.com/2013/04/02/march-is-joint-second-coldest-on-record/ + http://www.bbc.co.uk/news/uk-22010852 with 2013marchsnowfalltemperaturesunited_kingdom