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Researchers in Australia and New Zealand say wild pigs across the world are having the same impact on the climate as a million cars. Feral pigs in the Northern Territory Source: istock.com
Their research, recently published in Global Change Biology, says by uprooting carbon trapped in soil, wild pigs are releasing about 4.9 million metric tonnes of carbon dioxide per year.
This is equivalent to 1.1 million cars.
The researchers from the University of Queensland and University of Canterbury used models of wild pig population density, soil damage, and their effect on soil carbon emissions to reach their findings.
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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.
Lun, 07/19/2021 - 16:23 El impacto climático de los jabalíes es mayor que el de un millón de coches, según un estudio que señala que al escarbar el suelo estos liberan anualmente alrededor de 4,9 millones de toneladas métricas de dióxido de carbono en todo el mundo, el equivalente a 1,1 millones de coches. El trabajo se publica en la revista Global Change Biology y sus autores señalan que la creciente población de jabalíes en el mundo podría ser una importante amenaza para el clima. Para llegar a sus conclusiones, el equipo de la Universidad de Queensland y la Universidad de Canterbury utilizó modelos predictivos junto a técnicas avanzadas de cartografía para determinar el daño climático que causan los cerdos salvajes en los cinco continentes.
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.”