Asparagopsis is native to Australia and flourishes in Tasmania's nutrient-rich waters, he says, but in other parts of the world, and inland areas, land cultivation might be the best option. Proceedings of the National Academy of Sciences (PNAS), As livestock eat, so they emit: Highly variable diets drive highly variable climate change ‘hoofprints’–BIG new study, Biomass use, production, feed efficiencies and greenhouse gas emissions from global livestock systems, Livestock and global change: Emerging issues for sustainable food systems, Cattle in poor countries produce more earth-warming gases, Biomass use, production, feed efficiencies and greenhouse gas emissions from gl…. In the list of foods that contributed the most to this reduction, pork is third behind beef and orange juice. The NRDC estimates that changes in the American diet avoided approximately 271 million tons of climate-warming pollution between 2005 and 2014, roughly equivalent to the tailpipe pollution of 57 million cars for one year. Australia is home to around 1% of the global cow population, says Battaglia. Sea Forest is cultivating asparagopsis in a marine farm off the coast of Tasmania. But how? Read an introduction to the article: Livestock and global change: Emerging issues for sustainable food systems, The article in the news: BBC News article: Cattle are top global livestock emittersIRIN Article: Cattle in poor countries produce more earth-warming gases, CCAFS is a collaboration among CGIAR Centers and Reserch Programs.The Program is carried out with support from its donors, Creative commons attribution-noncommercial 4.0 international license. Another dairy product, cheese, comes in fifth place with 9.8 kg of emissions per kg produced. A new study shows in great details what farm animals in many parts of the world eat, how efficiently the feed is converted into milk, eggs and meat, and the volume of greenhouse gases the various animals produce as a result. One kilo of pork creates 7.9 kilos of carbon emissions. Battaglia estimates that Australia would need 35,000 tons of dried seaweed a year to feed asparagopsis to all its dairy cows and cattle on feedlots -- intensive feeding yards where they are fattened up before slaughter. The US has the world's largest fed-cattle industry, numbering more than. But the negative effect on the climate of Methane is 23 times higher than the effect of CO2. When the seaweed was first trialed by scientists, it performed so well that they assumed their equipment was broken, he adds. Along with milk, pork, and high-fructose corn syrup -- widely used as a sweetener in soft drinks -- shellfish is among the key foods that Americans are eating less of. The percentage is lower in the United States in part because our overall greenhouse gas emissions are so much higher than other countries: In the United States we … Battaglia is upbeat. "The seaweed is seeded onto the lines which are then deployed into the ocean," he explains. Based on the calculations for Australia, feeding asparagopsis to the worlds' feedlot and dairy herds would require around 3.5 million tons of dried product a year, he says. The third most damaging food, by some distance, is butter: one kilo of butter equals nearly 12 kilos of CO2 -- about half as many as beef. The study was funded by the International Livestock Research Institute (ILRI), the Commonwealth Scientific and Industrial Research Organisation (CSIRO), and CCAFS. Updated 0118 GMT (0918 HKT) September 22, 2020. The detailed analysis is based on a unique and comprehensive dataset, and provides a number of answers to the recurring questions regarding the greenhouse gas emissions caused by livestock. Shellfish costs the environment 11.7 kilos of CO2 for every kilo of food produced, just marginally less than butter. This seaweed could help lower methane emissions. As an example, in arid regions of sub-Saharan Africa where available animal fodder is of much lower quality than that in many other regions, a cow can consume up to ten times more feed, in the form of rangeland grasses, to produce a kilo of protein than a cow that has better fodder and lives under better conditions.

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