The Environment and Humanitarian Action (EHA) Haiti country study is one in a series of country-level studies that assess the extent to which environmental concerns have been mainstreamed in humanitarian action. In April 2015, the Joint UNEP/OCHA Environment Unit, supported by Groupe URD, undertook a mission to Haiti to look at environmental mainstreaming in the humanitarian response to floods, tropical storms, hurricanes and mainly on the aftermath of the 2010 earthquake.