Sustainability is about treating the Earth as if we intend to stay.

But it doesn't only mean living in a 'green' way. It asks searching questions about how we can balance economic, social and environmental factors to create a better world for everyone in it.

The realities of climate change, drought, dwindling resources, wasted energy, conflict and social injustice are becoming more and more pressing. We believe we can all make the decision to live in a way that's better, greener, happier and more just.

Sustainability has three key strands:

• Social, ensuring a strong, healthy and just society for existing and future communities
• Economic, where environmental and social costs fall on those who cause them, and resources are distributed fairly and efficiently
• Environmental, respecting and protecting the limits of the planet's environment, resources and biodiversity.

By acting in a more sustainable way, based on thought, fairness and understanding, we can develop a world that future generations will thank us for.

It can start here. Our aim is to open ears, eyes and minds and, we hope, inspire us all to act differently.