And those forecasting potentially catastrophic change were reluctant to accept anything less than legal commitments to drastic measures to limit warming to two degrees celsius.

He acknowledges that if humanity were to be inflicting catastrophic change on nature, then any sensible person should care.

That's one thing about catastrophic change and loss that sometimes gets overlooked: the relationship between how the world sees you and how you see yourself.

As a motif it reappears when peoples and cultures are rocketing towards sudden catastrophic change, when whole systems of meaning are up for grabs.

At one point, a catastrophic change reduced the vast body of fresh water to a seasonal lake or marsh.