Welcome to the Inquiry from the BBC World Service.
I'm Charmaine Cozier.
Each week, one question, four expert witnesses and an answer.
February 2026.
The Galapagos group of islands are a province of Ecuador and one of the most biodiverse locations in the world.
A team of park rangers trek across one of those islands, Floriana.
They have large grey plastic crates strapped to their backs.
Inside are giant tortoises.
It's been more than 180 years since the native tortoise species became extinct there.
Now 158 hybrid descendants raised in a breeding programme are released into the wild.
They crawl around, breaking up dense ground,
clearing paths and spreading seeds and nutrients from the plants they graze on.
Rewilding, or letting nature take care of itself,
can restore stability to damaged ecosystem components which support life on Earth,
like fungi, bacteria, vegetation, insects and animals.
So what is it capable of on a wider scale?
This week we're asking, how can rewilding help combat climate change?
Rewilding is an approach to nature recovery where we put nature itself back at the driving seat to allow ecosystems to recover by themselves,
to self-regulate and to thrive with minimal human intervention.
Carolina Soto-Novaro is head of Wilder Nature at Rewilding Europe,