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Wild pigs add to world s growing climate woes: Aussie scientist - World News
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Invasive Species of Feral Pigs Release as Much CO2 as 1 1 Million Cars
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By uprooting carbon trapped in soil, wild pigs are releasing around 4.9 million metric tonnes of carbon dioxide annually across the globe, the equivalent of 1.1 million cars.
An international team led by researchers from The University of Queensland and The University of Canterbury have used predictive population models, coupled with advanced mapping techniques to pinpoint the climate damage wild pigs are causing across five continents.
UQ’s Dr Christopher O’Bryan said the globe’s ever-expanding population of feral pigs could be a significant threat to the climate.
“Wild pigs are just like tractors ploughing through fields, turning over soil to find food,” Dr O’Bryan said.
The climate impact of wild pigs around the world is equivalent to the greenhouse gas emissions of 1.1m cars annually, according to new research.
Modelling by an international team of researchers estimates that feral pigs release 4.9m metric tonnes of carbon dioxide each year globally by uprooting soil.
Researcher Dr Christopher O’Bryan of the University of Queensland said feral pigs were one of the most widespread vertebrate invasive species on the planet.
“Pigs are native to Europe and parts of Asia, but they’ve been introduced to every continent except Antarctica,” he said.
“When we think of climate change, we tend to think of the classic fossil fuel problem. This is one of the additional threats to carbon, and to climate change potentially, that hasn’t really been explored in any global sense.”
Wild Pigs Release More Carbon Dioxide Than Million Cars as Invasive Species Uproot Soils Everywhere
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