Australia's farmers and land carers are being urged to work together to simultaneously tackle a growing threat of "wicked issues".

To do this, people most exposed to the threats and those trying to combat it will have to trust each other and work together, a farming leader says.

There was no shortage of "wicked issues" facing the world, including climate change, biodiversity loss and food insecurity, World Farmers' Organisation vice-president Fiona Simson told the 2025 Landcare Australia conference on Monday.

The first woman president of the National Farmers Federation said the current approach was piecemeal and duplicative, with laws that did not integrate.

"Sometimes we look at those issues in a one-eyed way," Ms Simson said.

"We need to deal with them all at once."

Policy had not

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