From the source of the mighty Zambesi
My swim to the coast looks so easy.
(When euphoria palls
The Victoria Falls
May turn me a trifle more queasy.)

Each human individual is trapped at the centre of their world; of course, the cause for queasiness here is not the loss of one foolhardy adventurer’s life, but the outright death of the river, precipitated by humanity’s dithering over the climate crisis.