The climate crisis is both the easiest and the hardest issue we have ever faced. The easiest because we know what we must do. We must stop the emissions of greenhouse gases. The hardest because our current economics are still totally dependent on burning fossil fuels, and thereby destroying ecosystems in order to create everlasting economic growth.

We should no longer measure our wealth and success in the graph that shows economic growth, but in the curve that shows the emissions of greenhouse gases.

I'm telling you there is hope. I have seen it, but it does not come from the governments or corporations. It comes from the people.

We are living in the beginning of a mass extinction and our climate is breaking down.

Once we start to act, hope is everywhere. So instead of looking for hope, look for action. Then, and only then, hope will come.

We all have a choice. We can create transformational action that will safeguard the living conditions for future generations. Or we can continue with our business as usual and fail.

I thought I couldn't make a difference because I was too small.

We can't just continue living as if there was no tomorrow, because there is a tomorrow.

We can no longer save the world by playing by the rules.