In 2050

Martin Rees, writing for the New Statesman:

Jody Amiet/AFP/Getty

Jody Amiet/AFP/Getty

I quote Wells because he reflects the mix of optimism and anxiety – and of speculation and science – which I’ll try to offer in this lecture. Were he writing today, he would have been elated by our expanded vision of life and the cosmos – but he’d have been even more anxious about the perils we might face. The stakes are indeed getting higher: new science offers huge opportunities but its consequences could jeopardise our survival. Many are concerned that it is ‘running away’ so fast that neither politicians nor the lay public can assimilate or cope with it...

My theme was this. Earth is 45 million centuries old. But this century is the first when one species – ours – can determine the biosphere’s fate. I didn’t think we’d wipe ourselves out. But I did think we’d be lucky to avoid devastating setbacks. That’s because of unsustainable anthropogenic stresses to ecosystems, because there are more of us (world population is higher) and we’re all more demanding of resources. And – most important of all – because we’re empowered by new technology, which exposes us to novel vulnerabilities.

And we’ve had one lucky escape already.

Reckless are we. Matters are may get worse.

Human population density drives extinctions

Tim De Chant, reporting for Per Square Mile: 

Sometimes there are scientific studies that seem to confirm the obvious. To wit: The more people that live in an area, the more species that go extinct.

No matter how superfluous it seems, it’s good that scientists undertake these studies, if only to confirm our suspicions, rule out potential confounding variables, or simply make the phenomenon feel more real. All three are the case with the recent paper on population density and animal extinctions. Jeffrey McKee, an anthropologist at the Ohio State University, first published on the relationship back in the early 2000s, and his latest confirms some of his earlier results and predictions.

To have a meaningful discussion about improving our quality of living we must first talk about stabilizing our population.  Action may follow.