That's the way I do things when I want to celebrate, I always plant a tree.

We owe it to ourselves and to the next generation to conserve the environment so that we can bequeath our children a sustainable world that benefits all.

Nobody in the world is completely dependent on another person, but we are all interdependent.

In a few decades, the relationship between the environment, resources and conflict may seem almost as obvious as the connection we see today between human rights, democracy and peace.

One of the reasons why I say we all need to work together to save the Congo forest, because if we don't save the Congo forest, the Amazon forest and the southeast Asia forest, if those forests release the carbon they are trapping at the moment, much of what you will be doing in the North will be negated by the amount of carbon released into the atmosphere.

We’re constantly being bombarded by problems that we face and sometimes we can get completely overwhelmed. [But] we should always feel like a hummingbird. I may feel insignificant, but I don’t want to be like the other animals watching the planet go down the drain. I’ll be a hummingbird, I’ll do the best I can.

In Kenya women are the first victims of environmental degradation, because they are the ones who walk for hours looking for water, who fetch firewood, who provide food for their families.