That's the generally clever Nick Harkaway, falling prey to the assumptions of Christian eschatology.
There will be no redemption; there will be no salvation. Those happen in the afterlife, which doesn't exist.
The folks getting rich off of open-loop extractive capitalism -- that would be everyone who is in any sense rich -- don't think a future in which they're not doing that is positive. They've been making that decision for forty-odd years now, and it behoves us to listen. (There was totally, is totally, the option of a decision to get rich some other way. It's been actively disdained.)
If we want a future with a smaller mass extinction, there are a number of thing we must do. Cease fossil carbon extraction; cease outdoor illumination at night (yes, really; it's at least as lethal to insects as pesticides, and it's much harder to evolve around); acknowledge that if what makes you middle class is owning your house your house is still worthless. Stop using synthetic materials that do not either rot nor get recycled. Recognise that going on a binge with capital is not income, no matter how long or how much or how habituated the carbon binge has become.
The current oligarchy isn't going to do that for the sake of a positive future; they're mammonites, and the only requirement for a positive future is having all the money. Having all the money in a complex, healthy ecosystem and having all the money in an underground bunker dependent on filtered air and mushroom-farming based on a steadily decreasing supply of frozen corpses is much of a muchness to a mammonite.
The current oligarchy probably wouldn't do that if the certain alternative was public unanesthetized auto-orchidectomy with a charity shop cheesegrater.
So the hope, if you must descend into the weakness of hope, is not for a less damaged world than there might have been; the hope is not for a quiet passing of extractive capitalism, that supreme engine of war; the hope is the hope of victory.
Victory is having the leisure above survival to fix stuff; victory is having no more oligarchy. Victory is the prospect of a human population who does not regret their precarious existence.
You don't get that through hope, or wrath, or righteousness; you get that through planning. You get that through not flinching away from the purpose of the system is what you observe it to do. (The government of Ontario exists to kill as many people as necessary to ensure the cash flow of the existing rich.)