{"id":89752,"date":"2023-03-15T02:12:00","date_gmt":"2023-03-15T01:12:00","guid":{"rendered":"https:\/\/www.sonnenseite.com\/?p=89752"},"modified":"2023-03-13T17:14:13","modified_gmt":"2023-03-13T16:14:13","slug":"without-changes-global-food-systems-may-drive-world-beyond-climate-targets-says-study","status":"publish","type":"post","link":"https:\/\/www.sonnenseite.com\/en\/science\/without-changes-global-food-systems-may-drive-world-beyond-climate-targets-says-study\/","title":{"rendered":"Without Changes, Global Food Systems May Drive World Beyond Climate Targets, Says Study"},"content":{"rendered":"\n

Production of meat, dairy and rice are the leading sources of food-related emissions. Improved management practices and changes in diet could go a long way to addressing the issues.<\/p>\n\n\n\n

A new study by climate scientists sheds light on the significant role food systems will play in future global warming, and what can be done about it. The research<\/a>, published in the journal Nature Climate Change<\/em>, finds that food production, distribution and consumption under existing practices could add around 1 degree C to planetary warming by 2100\u2014and, in turn, risk exceeding the internationally agreed-upon 1.5 C temperature target.<\/p>\n\n\n\n

The study, which is based on extensive global datasets, models and data from more than 100 studies, shows that more than half of this warming, about 55 percent, could be avoided by changes in agricultural production practices, decarbonization of the energy used to produce food, shifts in consumer food choices, and reductions of food waste. The top agricultural sources of greenhouse gases identified by the study: production of meat, dairy and rice.\u201cThis research highlights the urgent need for action to reduce emissions from food systems,\u201d said lead author Catherine Ivanovich<\/a>, a Ph.D. candidate at the Columbia Climate School\u2019s Lamont-Doherty Earth Observatory<\/a>. <\/p>\n\n\n\n

\u201cBy understanding which food items and greenhouse gases contribute most to future warming, we can address these emissions with targeted strategies which both reduce future climate change and promote food security.\u201dOf the warming expected by the end of the century from business-as-usual food systems, methane emissions, mostly from livestock burps and manure, rice paddies and decomposing food waste, account for nearly 60 percent. Carbon dioxide, such as that generated from fuel used for farm equipment and food transportation, and nitrous oxide, from excess synthetic fertilizer and ruminant manure on rangelands, are each responsible for about 20 percent.<\/p>\n\n\n\n

The study quantified the mitigation potential of four solutions. The researchers said improvements to production practices and adoption of technologies that decrease methane and nitrous oxide emissions from livestock could provide 25 percent of the reductions possible by the end of the century. These changes could come from scaling up innovative solutions to methane emitted from the guts of ruminant animals, and the widespread use of better manure-management practices. The result could be decreasing emissions from ruminant meat, dairy and non-ruminant meat by 35 percent, 30 percent and 10 percent, respectively, by 2100.<\/p>\n\n\n\n

The researchers say decarbonizing the energy sources used to produce, process and transport food by 2050, in line with international net zero goals, would decrease expected warming from global food systems by 17 percent by 2100.<\/p>\n\n\n

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