If Jonathan Porritt actually believes what he says here then this is a revelation, a conversion on the road to Damascus.

Porritt’s book argues
that capitalism ‘is now the only economic game in town’ and all sides
must find ways of making free markets deliver a more sustainable future.

This is actually what the free market environmentalists have been saying for years. Design the constraints around markets so as to align the incentives to protect and improve the environment.

If he does actually believe it, of course.