The great gene editing debate: can it be safe and ethical?

There’s nothing new about genetic engineering. By cross-breeding plants and animals, our Stone Age ancestors realised they could boost the amount of food they produced.

Modern genetics has enabled scientists to do much more: to make precise, targeted changes to the DNA of organisms in a lab. And that, they claim, will lead to new, more productive, disease-resistant crops and animals.

The science is still in its infancy, but gene-edited foods are already on the shelves in Japan: tomatoes rich in a chemical that supposedly promotes calmness; red sea bream with extra edible flesh; and puffer fish that grow more quickly.

In the US, too, firms are developing heat-resistant cattle, pit-less cherries and seedless blackberries.

Supporters of the technology say it could reduce animal diseases and suffering and lead to the use of fewer antibiotics. They also believe it could tackle climate change by lowering emissions of the greenhouse gas methane – produced by livestock such as cows, goats and deer when their stomachs are breaking down hard fibres like grass for digestion.

But opponents say gene editing is still not proven to be safe and that they remain concerned about the implications for animal welfare.

Now a law permitting gene-edited food to be sold in the UK has been paused and some British scientists warn they could be overtaken by other countries.

The new Labour government has pledged closer alignment with the European Union, particularly on regulations that might affect trade. And currently, the EU has much stricter rules around the commercial sale of gene-edited and genetically modified crops.

The EU set stringent regulations on genetically modified (GM) crops decades ago because of safety concerns and public opposition to the technology. Gene-edited crops are covered by the same regulations.

But

Read the full article