Give me a minute to get over the shock of finding myself in agreement with Cameron Diaz. *pause*

A Guardian CIF Green post by Brendan O’Neill accuses Diaz of expressing a fashionable “Malthusianism” for saying that there are too many people in the world. He claims

We’ve got all the space in the world
Cameron Diaz is parading the latest Malthusian fashion, that the world has too many people. Ignore her, it’s wrong, wrong, wrong.
It’s official: Malthusianism, the belief that there are too many people on the planet, has become fashionable. A-list fashionable. Alongside the grumpy old men in grey suits who have traditionally made up the Malthusian lobby, Hollywood starlets now bemoan the burden of humanity on the planet.

Nah. Brendan’s argument is wrong, wrong, wrong.

I really hope you weren’t getting paid for this CIF piece, Brendan. Because that would be a non-zero portion of the planet’s limited resources getting misdirected.

Yes, we have got all the space in the world.

That’s pretty much true by definition. It just means the world has its own allotment of space.

However, it doesn’t mean the world isn’t overpopulated, nor that the earth can absorb a few more billion human life forms.

Air, water, fuel, the survival of other species, our dependence on a working ecosystem – somehow, these don’t factor into Brendan’s vision of the world. He just takes as an item of faith that the food supply can be expanded more or less indefinitely through industrial production. Through the application of the human ingenuity of billions of people.

Give me a break. Even if that were true – and if you could ignore the effects on the ecosystem and generate raw materials through magic (which I can’t believe for a minute) – what specific evidence does Brendan have that people will start coming together to apply rational solutions to the creation, use, disposal and fair distribution of materials?

A recognition that the earth can’t hold an infinite number of humans doesn’t imply that you are a follower of all the thoughts of a 19th century economist who also noticed this.

Nor does it mean that you want to kill off loads of existing people (as Brendan suggests) nor that you share any other ideas with the BNP (as Brendan suggests) nor with the Duke of Edinburgh (as Brendan suggests) nor even with David Attenborough (as Brendan suggests.)

This is the central problem with Malthusianism: it looks upon population growth as the only variable, and everything else – from food production to industrial development to human ingenuity itself – as fixed. In short, founded on a negative view of humanity as incapable of resolving its problems or improving the world, it can only see more humans as something to worry about, a harbinger of disaster. In this sense population scaremongering is a fatal distraction, focusing people’s attention on the “problem” of overpopulation rather than on what we can do collectively to make the planet a better, wealthier, more fruitful place for hundreds of billions of human beings.

It seems that nothing can shake Brendan’s utopian vision of collective human action to make the planet better. But some very basic biology lessons might shake his faith in the capacity of the any species to survive if it becomes too numerous for its environment.

Hundreds of billions, indeed. Has he got any idea of what the world population is? If there were hundreds of billions we’d have to start rationing air.

He ends with this wonderfully comic bit. Comic because it treats a 30-year-old newsbite from a musician with no expertise in the subject as if it was intrinsically more worthy than an uninformed rant from Joe Normal in the pub.
Comic, because it implies that money can somehow feed people. (Chocolate coins, maybe)
And it’s a comic piece of celeb-quoting, because, in any case, Lennon’s last sentence undercuts the whole assumption that there is enough of everything for everybody

So ignore Ms Diaz. I preferred it when celebs had a more positive outlook. Asked on a 1970s chat show about overpopulation, John Lennon said it was a “myth”: “We have enough food and money to feed everybody. There’s enough room for us, and some of them can go to the moon anyway.”