Go with the flow An impassioned plea to save our rivers combines poetry and adventure

Tracking a river through a cedar forest in Ecuador, Robert Macfarlane comes to a 10-metre-high waterfall and, below it, a wide pool.

- Blake Morrison

It's irresistible: he plunges in. The water under the falls is turbulent, a thousand little fists punching his shoulders. He's exhilarated. No one could mistake this for a "dying" river, sluggish or polluted. But that thought sparks others: "Is this thing I'm in really alive? By whose standards? By what proof? As for speaking to or for a river, or comprehending what a river wants - well, where would you even start?" He's in the right place to be asking.

In September 2008, Ecuador, "this small country with a vast moral imagination", became the first nation in the world to legislate on behalf of water, "since its condition as an essential element for life makes it a necessary aspect for existence of all living beings". This enshrinement of the Rights of Nature set off similar developments in other countries. In 2017, a law was passed in New Zealand that afforded the Whanganui River protection as a "spiritual and physical entity".

In India, five days later, judges ruled that the Ganges and Yamuna should be recognised as "living entities". And in 2021, the Mutehekau Shipu (AKA Magpie River) became the first river in Canada to be declared a "legal person [and] living entity". The Rights of Nature movement has now reached the UK, with Lewes council in East Sussex recognising the rights and legal personhood of the River Ouse.

Macfarlane's book is timely. Rivers are in crisis worldwide.