We have a responsibility to protect the rights of generations, of all species, that cannot speak for themselves today. The global challenge of climate change requires that we ask no less of our leaders, or ourselves.

For the rains and the rivers you need forests and you need to make sure these your forests are all protected, that there is no logging, that there is no charcoal burning and all the activities that destroy the forest. All this really needs to be done so that you can be able to grow good coffee, so that you can have an income, so that you can send your children to school, so that you can buy medicine, so that you can take them to hospitals, so that you can care for the women, especially mothers.

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.

All of us have a God in us, and that God is the spirit that unites all life, everything that is on this planet. It must be this voice that is telling me to do something, and I am sure it's the same voice that is speaking to everybody on this planet - at least everybody who seems to be concerned about the fate of the world, the fate of this planet.

We do the right thing not to please people but because it's the only logically reasonable thing to do, as long as we are being honest with ourselves - even if we are the only ones.

Human rights are not things that are put on the table for people to enjoy. These are things you fight for and then you protect.

As a scientist I cannot say we don't want to hear anything about GMOs, because these are advances in science. But I think its also important, especially when you are dealing with food, to be cautious.