If Africa is left behind, she is going to continue pumping greenhouse gases into the atmosphere, especially carbon. She's going to continue logging the forests, she's going to continue burning charcoal, she is going to continue practicing agricultural activities that destroy the environment, and sooner or later Africa's problem will become a global problem.

You have to know yourself, and that once you know yourself, then you cannot be bound by - because sometimes we are bound by other people's thoughts, because we are not sure about ourselves. But once you know yourself... I guess it is really an expression of the biblical statements that the truth will make you free! When you know, then you are free, your mind is free.

Having studied biology really helped me a lot because I quickly understand how biological systems work, and how they fail, and the tragedy of when they fail, because we are dealing with life systems, and when we hear that a species has become extinct, or is threatened, you realize that this could mean that this species will disappear from the face of the earth forever! So that understanding really gives you energy to do something to save it.

I want to do the right things - I want to plant trees, I want to make sure that the indigenous forests are protected because I know, whatever happens, these are the forests that contain biodiversity, these are the forests that help us retain water when it rains and keep our rivers flowing, these are the forests that many future generations will need.

I learned in America a long time ago, the three R's, the principle of three R's - reuse, reduce, recycle. And as I say those words, there are so many things individually we can do to reduce - we don't need to consume as much as we are consuming. Reduce. And by reusing, we can reuse a lot of things we just throw into the dumpsite. And reduce the production. The more we reuse, the more we can reduce.

Unfortunately, the issues of climate change, unlike many other issues, are very subtle because the changes we observe are very, very subtle.

Sometimes we become bound by other people's thoughts because we are not sure about ourselves.