Global heating effects, and their ecological ricochet effects, threaten to wipe out many of New Zealand's unique wildlife.

One species, the cobble skink, survives only in a zoo. There is no longer any place it can live in he wild.

Such conservation efforts could go on for centuries, provided society continues to maintain the interest, the wealth, and the organization to carry it out. But those are likely to disappear as the crunch gets harder. In 50 years, will society still be able to carry out such efforts in he midst of calamities such as starvation, fire, and migration war?