Ioane Teitiota and Angua Erika and their three New Zealand-born children have lost claims for refugee status due to global warming.
Teitiota has been battling deportation to Kiribati since 2011, when he overstayed his visa.
He argued his family faced indirect persecution from man-made climate change, which has caused rising sea levels, contaminated water, destruction of crops, tidal surges, and extreme weather.