International Day for Biological Diversity

http://www.cbd.int/idb/ The United Nations has proclaimed May 22 as the International Day for Biological Diversity to increase understanding and awareness of biodiversity issues. This year, the theme is invasive alien species - one of the greatest threats to biodiversity, and to the economic and ecological well-being of society and the planet. UK events to mark the day are listed here http://www.cbd.int/idb/2009/about/celebration/uk/