Stirling Soil & Nutrient Network – Climate Change

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Stirling Soil & Nutrient Network – Climate Change

Stirling Soil & Nutrient Network Welcome Aucheneck Estates Zach Reilly 10/10/2019 SAC Consulting Todays talk: • What is climate change and is it real? • How does agriculture contribute? • What can we do to reduce emissions? First… some rules! • No anti-vegan ranting • No anti-vegan ranting • Please ask questions! The Greenhouse Effect (Kate and Ernest, 2015) Observed warming (IPCC, 2019) Is it real? • Rate of change (NASA, 2019) Carbon cycle (University of Waikato, 2007) But that’s CO 2 not temperature? (IPCC, 2014) What about natural change? • Milankovitch cycles What about Agriculture? (IPCC,2014) What about UK Agriculture? (ONS, 2019) Agriculture – what and how? • Carbon Dioxide – fuel, • Methane – enteric fermentation, manure management, wetlands • Nitrous oxide – fertiliser, compacted soils, The global warming potential A measure of how much energy the emissions of 1 ton of a gas will absorb over a given period of time, relative to the emissions of 1 ton of carbon dioxide (CO 2) (usually 100 years) So… what can we do? Within agriculture without changing land use • Increased food productivity • Agro-forestry • Improved cropland management • Improved livestock management • Improved grazing land management • Reduced grassland conversion to cropland • Forest management So… what can we do? Across all soils without changing land use • Increased soil organic carbon content • Reduced soil erosion • Reduced soil salinization • Reduced soil compaction So…what can we do? Within Agriculture but changing land use • Bioenergy and BECCS • Reforestation • Afforestation • Biochar Conclusion • Its real and it isn’t going away • Its extremely complex, start by understanding your own emissions (Carbon Audits) • We have the potential to make a huge difference Need more information? Visit the website for ways to become more efficient: https://www.farmingforabetterclimate.org/ Or https://www.ipcc.ch/srccl-report-download-page/ Any questions? .

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Late Pliocene Climate Variability on Milankovitch to Millennial Time Scales: a High-Resolution Study of MIS100 from the Mediterranean
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