But according to John Turner of the British Antarctic Survey, the leader of the review, he and his colleagues wanted to communicate their belief that there were good qualitative reasons to think that ice would flow off the western Antarctic ice-sheet faster in the future than it has done in the past. In this sentence, qualitative means:
made of or resembling small fragments

relating to the relationship between a wife and husband

relating to or affecting the internal organs

relating to or involving comparisons based on degrees