There is no ‘Plan B’ because we do not have a ‘Planet B.’  We have to work and galvanize our action.

 Ban Ki-Moon

Living sustainably means leaving our planet at least as healthy, resource-rich and beautiful as we found it. This is an enormous challenge, but it is a challenge we must meet if we want our descendants to have a planet worth living on.

Achieving sustainability will require making substantial changes in the way we live, work, travel and entertain ourselves; in how we build our houses and cities; in what we eat and how we grow food; in what we buy, and how we manufacture and dispose of our consumer goods. Part of the challenge lies in learning to see our world differently: a roof can be a garden, a poem can be a gift, a bus trip can be an opportunity to learn some Japanese.

In 2015 countries around the world agreed to seventeen Sustainable Development Goals (SDGs) to recognise both our combined responsibility to end poverty and develop sustainably. Like the Millennium Development Goals, the SDGs are ambitious goals to improve the lives of people everywhere.

See also Climate change, Energy and Pollution and waste.