Question: What court ruled the claim of climate change refugee to be untenable?
Sentence: Indeed, in 2013 a claim of a Kiribati man of being a "climate change refugee" under the Convention relating to the Status of Refugees (1951) was determined by the New Zealand High Court to be untenable as there was no persecution or serious harm related to any of the five stipulated Refugee Convention grounds.
Answer in sentence: yes