Extreme heatwaves have become a major threat to Australia's food supply, and not just in summer

When record-breaking heatwaves hit parts of Australia over summer, it was not just people and wildlife that suffered.

The extreme heat also wiped out entire crops and highlighted a growing struggle for farmers with what is likely to become an even bigger challenge.

Researchers warn increasingly extreme heatwaves throughout the year are putting food security at risk, with more studies urgently needed to help growers adapt.

Anthony De leso manages Thorndon Park Produce, a family business north of Adelaide growing a wide variety of leafy vegetables and herbs.

During summer, his farm was hit by three extreme heatwaves that decimated delicate crops.

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