{"id":140082,"date":"2019-08-12T12:00:49","date_gmt":"2019-08-12T11:00:49","guid":{"rendered":"https:\/\/www.transcend.org\/tms\/?p=140082"},"modified":"2019-08-12T12:27:35","modified_gmt":"2019-08-12T11:27:35","slug":"eat-less-meat-un-climate-change-report-calls-for-change-to-human-diet","status":"publish","type":"post","link":"https:\/\/www.transcend.org\/tms\/2019\/08\/eat-less-meat-un-climate-change-report-calls-for-change-to-human-diet\/","title":{"rendered":"Eat Less Meat: UN Climate Change Report Calls for Change to Human Diet"},"content":{"rendered":"

8 Aug 2019 – The report on global land use and agriculture from the Intergovernmental Panel on Climate Change comes amid accelerating deforestation in the Amazon. <\/em><\/p><\/blockquote>\n

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Cattle farming, shown here in northern Brazil, is emission-intensive and often accompanies large-scale deforestation. Yasuyoshi Chiba\/AFP\/Getty<\/p><\/div>\n

Efforts to curb greenhouse gas-emissions and the impacts of global warming will fall significantly short without drastic changes in global land use, agriculture and human diets, leading researchers warn in a high-level report commissioned by the United Nations.<\/p>\n

The special report on climate and land by the Intergovernmental Panel on Climate Change (IPCC)<\/a> describes plant-based diets as a major opportunity for mitigating and adapting to climate change \u2015 and includes a policy recommendation to reduce meat consumption.<\/p>\n

More: Global warming will happen faster than we think<\/a><\/em><\/strong><\/p><\/blockquote>\n

On 8 August, the IPCC released a summary of the report, which is designed to inform upcoming climate negotiations amidst the worsening global climate crisis. More than 100 experts compiled the report in recent months, around half of whom hail from developing countries.<\/p>\n

\u201cWe don\u2019t want to tell people what to eat,\u201d says Hans-Otto P\u00f6rtner, an ecologist who co-chairs the IPCC\u2019s working group on impacts, adaptation and vulnerability. \u201cBut it would indeed be beneficial, for both climate and human health, if people in many rich countries consumed less meat, and if politics would create appropriate incentives to that effect.\u201d<\/p>\n

Researchers also note the relevance of the report to tropical rainforests, where concerns are mounting about accelerating rates of deforestation. The Amazon rainforests is a huge carbon sink that acts to cool global temperature, but rates of deforestation are rising, in part due to the policies and actions<\/a> of the government of Brazilian President Jair Bolsonaro.<\/p>\n

Unstopped, deforestation could turn much of the remaining Amazon forests into a degraded type of desert, possibly releasing over 50 billion tonnes of carbon into the atmosphere in 30 to 50 years, says Carlos Nobre, a climate scientist at the University of S\u00e3o Paolo in Brazil. \u201cThat’s very worrying,\u201d he says.<\/p>\n

\u201cUnfortunately, some countries don\u2019t seem to understand the dire need of stopping deforestation in the tropics,\u201d says P\u00f6rtner. \u201cWe cannot force any government to interfere. But we hope that our report will sufficiently influence public opinion to that effect.\u201d<\/p>\n

Paris goals<\/strong><\/p>\n

While fossil fuel burning for energy generation and transport garners the most attention, activities relating to land management, including agriculture and forestry, produce almost a quarter of heat-trapping gases. The race to limit global warming to 1.5 degrees above pre-industrial levels \u2015 the goal of the international Paris climate agreement<\/a> reached in 2015 \u2015 might be a lost battle unless land is used in a more sustainable and climate-friendly way, the latest IPCC report says.<\/p>\n

Related: How much can forests fight climate change?<\/a><\/em><\/strong><\/p><\/blockquote>\n

The report highlights the need to preserve and restore forests, which soak up carbon from the air, and peat lands, which release carbon if dug up. Cattle raised on pastures of cleared woodland are particularly emission-intensive, it says. This practice often comes with large-scale deforestation such as in Brazil or Colombia. Cows also produce large amount of methane, a potent greenhouse-gas, as they digest their food.<\/p>\n

The report states with high confidence that balanced diets featuring plant-based, and sustainably-produced animal-sourced, food \u201cpresent major opportunities for adaptation and mitigation while generating significant co-benefits in terms of human health\u201d.<\/p>\n

By 2050, dietary changes could free millions of square kilometres of land, and reduce global CO2 emissions by up to eight billion tonnes per year, relative to business as usual, the scientists estimate.<\/p>\n

\u201cIt\u2019s really exciting that the IPCC is getting such a strong message across,\u201d says Ruth Richardson, the Toronto, Canada-based executive director at the Global Alliance for the Future of Food, a strategic coalitions of philanthropic foundations. \u201cWe need a radical transformation, not incremental shifts, towards a global land use and food system that serves our climate needs.\u201d<\/p>\n

Careful management<\/strong><\/p>\n

The report cautions that land must remain productive to feed a rising world population. Warming enhances plant growth in some regions, but in others \u2015 including northern Eurasia, parts of North America, Central Asia and tropical Africa \u2015 increasing water stress seems to reduce the rate of photosynthesis. So the use of biofuel crops and the creation of new forests\u2015 seen as measures with the potential to mitigate global warming \u2015 must be carefully managed to avoid the risk of food shortage and biodiversity loss, the report says.<\/p>\n

Related: Droughts, heatwaves and floods: How to tell when climate change is to blame<\/a><\/em><\/strong><\/p><\/blockquote>\n

Farmers and communities around the world must also reckon with more intense rainfall, floods and droughts resulting from climate change, warns the IPCC. Land degradation and expanding deserts threaten to affect food security, increase poverty and drive migration, the report says.<\/p>\n

About a quarter of the Earth\u2019s land area appears to suffer soil degradation already \u2015 and climate change is expected to make thing worse, particularly in low-lying coastal areas, river deltas, drylands and permafrost areas. Sea level rise is adding to coastal erosion in some regions, the report says.<\/p>\n

Industrialised farming practices are responsible for much of the observed soil erosion and pollution, says Andre Laperri\u00e8re, the Oxford, UK-based executive director of Global Open Data for Agriculture and Nutrition, an initiative to make relevant scientific information accessible worldwide.<\/p>\n

The report might provide a much-needed, authoritative call to action, he says. \u201cThe biggest hurdle we face is to try and teach about half a billion farmers globally to re-work their agricultural model to be carbon sensitive.\u201c<\/p>\n

Nobre also hopes that the IPCC\u2019s voice will give greater prominence to land use issues in upcoming climate talks. \u201cI think that the policy implications of the report will be positive in terms of pushing all tropical countries to aim at reducing deforestation rates,\u201d he says.<\/p>\n

Regular assessments<\/strong><\/p>\n

Since 1990, the IPCC has regularly assessed the scientific literature, producing comprehensive reports every six years, and special reports on specific aspects of climate change \u2015 such as today\u2019s\u2015 at irregular intervals.<\/p>\n

More: Soviet Union\u2019s collapse led to massive drop in carbon emissions<\/a><\/em><\/strong><\/p><\/blockquote>\n

A special report released last year concluded that global greenhouse-gas emissions which hit an all-time high of more than 37 billion tonnes in 2018 must sharply decline in the very near future<\/a> to limit global warming to 1.5 degrees \u2015 and that this will require drastic action without further delay. The IPCC\u2019s next special report, about the ocean and ice sheets in in a changing climate, is due next month<\/a>.<\/p>\n

Governments from across the world will consider the IPCC\u2019s latest findings at a UN climate summit next month in New York. The next round of climate talks of parties to the Paris agreement will then take place in December in Santiago, Chile.<\/p>\n

Ant\u00f3nio Guterres, the UN\u2019s climate secretary, said last week that it is \u201cabsolutely essential\u201d to implement that landmark agreement \u2015 and \u201cto do so with an enhanced ambition\u201d.<\/p>\n

\u201cWe need to mainstream climate change risks across all decisions,\u201d he said. \u201cThat is why I am telling leaders don\u2019t come to the summit with beautiful speeches.\u201d<\/p>\n

\n

IPCC Special Report:<\/em> Climate Change and Land<\/em> – Download PDF HERE<\/em><\/a><\/h3>\n<\/blockquote>\n

Go to Original \u2013 nature.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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