Analysis: Scientists look to solve the ozone threat to Africa’s food security

Reuters

**A wheat sample exposed to increased levels of Ozone is seen at the UK Centre for Ecology and Hydrology research site near Bangor, Britain, July 20, 2022. REUTERS/Phil Noble**

ABERGUINGREEN, Wales (Reuters) – Botanist Felicity Hayes inspects her crops in one of eight small domed greenhouses in the hills of Wales. Spring planted peas and papayas are green and green leaves, and soon bear fruit.

In an adjacent greenhouse, these same plants look sickly and stunted. Pigeon peas are mature yellow with white leaves; papaya trees only reach half that height.

The only difference between the two greenhouse atmospheres is ozone pollution.