Due to the harsh climate with mean annual rainfall of below 100 mm and daytime temperatures sometimes reaching 50 °C (122 °F) or more during summer with dense solar radiation, water evaporates from the lake.Currently, freshwater irrigation schemes are being applied in the region to help eliminate salt from soils and increase the productive area.[8] Relict populations of the West African crocodile persisted in the Chott el Djerid until the early 20th century.[6] Chott el Djerid is the namesake of the Jerid Lacuna, an endorheic hydrocarbon lake on the Saturnian moon Titan.There has been a growing interest in permanently connecting the Chott el Djerid to the Mediterranean to create a Sahara Sea since the mid 2010s with the creation of the association Cooperation Road[12] which in 2018 obtained the approval of the Tunisian government.