Quite often when you help poor people, they don't think about the environment. They think about survival.

Education is a very empowering experience, so many people who went to school also managed to improve their quality of life much faster because they could get a job, they could get money. Once people see that you improve your life if you are educated, then education becomes a valuable tool and people want it.

I think [GMO] is one area where the is a need for legal regulations to make sure that companies - because at the moment, companies are the ones that have this technology - will not use this technology in a way that could adversely affect the people.

I have seen a lot of men, for example, who will make a will and include their daughters whether they are married or not. And perhaps the greatest change of attitude is that today, at least in Kenya, if you don't send your child to school - unless it's a matter of poverty or religion, and it is not that there no schools - then people wonder, "why the hell don't you send your children to school?" Now that's a very big jump from when I was going to school and educating girls was an exception to the rule.

The people are learning that you cannot leave decisions only to leaders. Local groups have to create the political will for change, rather than waiting for others to do things for them. That is where positive, and sustainable, change begins.

Every one of us can make a contribution. And quite often we are looking for the big things and forget that, wherever we are, we can make a contribution. Sometimes I tell myself, I may only be planting a tree here, but just imagine what's happening if there are billions of people out there doing something. Just imagine the power of what we can do.

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.