Food is sustenance for our bodies, as important as the sun, rain and the energy sources that provide our power needs.

In the next two decades, the luxury of opposition to GM foods enabled by plentiful alternatives could no longer be an affordable luxury, their ascendancy driven by necessity.

The world is going to find itself under massive strain to provide food for its people.

Science won’t solve the problem on its own but clearly it has a key role to play as hybridising and selection have been done very successfully for millennia.

Could the benefits of growing of GM crops outweigh any perceived dangers?

GM crops aren’t grown in Wales but many people in this country will have eaten GM soya or maize indirectly.

We have been told that food made from genetically modified crops will still be banned in Wales after Britain leaves the European Union.

At present, only one GM crop is grown commercially in Europe, a type of maize grown mostly in Spain.

The EU has blocked the introduction of all others, plants that have been developed to boost vitamin levels in our food, to reduce farmers' reliance on pesticides, and to increase yields.

If future research was done with government funding, and trials run by the state or on non-profit basis with no involvement by bio-tech companies, perhaps there would be a greater degree of reassurance and faith in the results.

It is now 36 years since GM crops were first developed and their introduction debated in this country.

Perhaps now is the time to at least revisit that debate and consider ways of improving food productivity without having to make further inroads into our planet's wild places to create more farmland.