Wales faces an "unrecognisable future" without urgent action to protect the environment, tackle poverty and ill health, the country's future generations commissioner has said.
The unique job was created ten years ago with a law which now forces public bodies to consider the long-term impacts of all decisions.
But Derek Walker, who was appointed to the role in 2022, told the BBC he had been "frustrated at progress" as the Wales Audit Office also warned of a failure to achieve "system-wide change".
The Welsh government said it would review the recommendations carefully before responding formally.
As part of the role, Wales' future generations commissioner writes a progress report every five years, to be published a year before a Senedd election.
It provides advice on the actions required to protect the Welsh citizens of today as well as "those yet to be born", Mr Walker explained.
While pointing to successes such as Wales' world-leading recycling rate and investment in sustainable transport, he warned of "significant" challenges.
These include climate change and the collapse of nature, with 1 in 6 species currently facing extinction from Wales.
There are also 273,000 homes at risk of flooding, a figure projected to double within 100 years, as a result of changing weather patterns and rising sea levels.