As the earth spins through space, a view from above the North Pole would encompass most of the wealth of the world - most of its food, productive machines, doctors, engineers and teachers. A view from the opposite pole would encompass most of the world's poor.

After all, despite the economic advantage to firms that employed child labor, it was in the social interest, as a national policy, to abolish it - removing that advantage for all firms.

All of the clean technologies are known, it's a question of simply applying them.

In certain ways, I'm not very different than I was when I was a teenager.

I believe sustainable use is the greatest propaganda in wildlife conservation at the moment.

As far as I'm aware, everybody in the shadow cabinet accepts that there's a compelling case on climate change and a strong scientific case.

Ultimately, I love everything about making games, but I've come to hate everything about conventional sustainability, and I know I'm not alone.

Veganism is an answer for almost every problem facing the world in terms of hunger and climate change.