Future Tense The role genetics could play in bringing down Methane levels
Dec 12, 2024
In this intriguing discussion, guests Pep Canadell, Chief Research Scientist at CSIRO, Ed Clayton, a ruminant nutritionist, and Sam Clark, a Professor of Animal Genetics, delve into the pressing issue of rising methane emissions. They explore innovative breeding strategies to reduce methane production in livestock, highlighting the benefits of genetic selection for low-emission traits. The conversation also covers global efforts to combat methane and the critical role of agriculture in these initiatives, showcasing how science could lead to sustainable livestock practices.
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Methane's Impact
- Methane is 80 times more potent than carbon dioxide in warming the planet but breaks down faster.
- Rising methane levels hinder climate goals, as all emissions should decrease, not increase.
Human Activity and Methane
- Two-thirds of global methane emissions are from human activity, primarily agriculture and landfills.
- Recent research shows human activity significantly influences methane emissions from freshwater sources.
Largest Methane Sources
- Livestock (enteric fermentation) is the largest source of anthropogenic methane, followed by rice paddies and landfills.
- Other sources include landfills, especially those near big cities.