Using data collected from soil samples, the research team ran an extreme scenario - where kudzu covered all non-urban and non-agricultural soils in the species' range by 2050 - through a "chemical transport" model.

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Do your research about the soil conditions in your area, and which plants grow best in it.

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The International Rice Research Institute (IRRI) said in a blog post that "even where the soil is contaminated with a lead spill, a number of studies have shown that rice plants do not take up a significant amount of lead and move it to the grains".

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"They were able to get their man on an American plane on an American soil so it is successful by all means, " said Mustafa Al-Ani at the Gulf Research Center.

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For instance, the Hadley Centre for climate research in the UK, published research only this week suggesting that forests will speed up climate change in the future, as the soil will start to emit more greenhouse gases than the trees absorb as the temperature builds up.

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