The UN Environment Programme (UNEP) has published a new report entitled "Keeping Track of our Changing Environment: From Rio to Rio+20". The report is produced as part of UNEP’s “Global Environmental Outlook-5”  series, the UN’s authoritative assessment process which reviews the the state, trends and outlook of the global environment. The full GEO-5 report will be launched in May, 2012, one month ahead of the Rio+20 Conference taking place in Brazil.