By Owen Gaffney, Stockholm Resilience Center (excerpted from a post on Rethink.earth<\/a>)<\/em><\/p>\n
W<\/span>hat will the world be like in 2050?<\/p>\n
But what if we already know what we want the world to look like in 2050. How do we get there?<\/p>\n
Dusk on Chang Jiang (Yangtze) Credit: Andrew Hitchcock | Flickr, CC BY 2.0,<\/p><\/div>\n
I was reminded of the Danish proverb as I arrived at the International Institute for Applied Systems Analysis<\/a> (IIASA) outside Vienna earlier this month for a three-day meeting of The World in 2050<\/a> (TWI2050) initiative. This was the third such scientific meeting hosted here at the home of some of the leading economic, demographic and energy modellers.<\/p>\n
Unlike other international modelling initiatives, TWI2050 was not created to explore a range of possible utopian to dystopian scenarios focusing on energy prices or climate change. The baseline assumption is a single scenario: successful completion of the Sustainable Development Goals<\/a> (SDGs), agreed by all nations in 2015, and arriving in 2050 with a global economy operating within planetary boundaries<\/a> \u2013 the limits of natural systems that keep Earth in a relatively stable state, relating to climate, biodiversity, deforestation, and fertilizer use, among others.<\/p>\n
#winwin
\n<\/strong>The 17 SDGs and their 169 targets are extremely ambitious. Buried in the detail are many trade-offs but also potential win-wins. Meeting the climate goal means reducing greenhouse-gas emissions to zero, and this could affect the energy, biodiversity, or consumption goals either positively or negatively. The goals and their inherent trade-offs are already catalyzing research<\/a>\u00a0and the results<\/a> show\u00a0how challenging<\/a> this will be.<\/p>\n
This month, scientists publishing in the journal Nature<\/em><\/a>\u00a0explored Australia\u2019s land-use trade-offs to reach the goals. The team, who were not at the TWI2050 meeting, used a massive computer simulation called Land Use and Trade Offs<\/a> (LUTO)\u00a0to see how factors such as climate policies or crop prices could shape Australia\u2019s landscape by 2050. Exploring 648 scenarios, researchers Brett Bryan and Lei Gao found just 1% of scenarios achieved five goals simultaneously. However, some goals seemed to go better together than others. Achieving targets related to food, water, and biofuel production was possible in 6.5% of scenarios, for example. The authors, whose work contributes to Future Earth\u2019s Global Land Programme<\/a>, conclude that national policymakers need more of this type of analysis to elucidate trade-offs and avoid conflicting policies. Moreover, they argued for more scientific coordination internationally for a global perspective on implementing the SDGs.<\/p>\n
Other research groups have also begun exploring the world in 2050. Recently Karl Heinz Erb from the Institute of Social Ecology, Vienna, who attended the TWI2050 workshop, and colleagues explored 500 scenarios to assess options for feeding 9 billion people in 2050 without further deforestation<\/a>\u00a0.<\/p>\n
Their work, which also supports the Global Land Programme, concluded that it was possible, but would likely mean low meat, vegetarian, or vegan diets globally. Meanwhile, Marco Springmann from the Oxford Martin Programme on the Future of Food, also attending, and colleagues showed that by 2050 a global vegetarian diet<\/a> would reduce diet-related global mortality by 6-10% and food-related greenhouse gas emissions by 29-70% \u2013 contributing to several goals. This type of research is essential to understand potential win-wins but these examples do not provide the pathways to arrive at these scenarios.<\/p>\n
So, are computer models powerful enough to capture essential elements of incremental and disruptive change across complex issues relating to poverty, equality, education, technology, policy, energy, food, water, and climate? Read more on the Rethink.earth website<\/a><\/p>\n
*The Stockholm Resilience Centre is one of the founding partners of The World in 2050 alongside the Sustainable Development Solutions Network and IIASA. Contributing organisations include the European Commission, Future Earth, Netherlands Environmental Assessment Agency, Potsdam Institute for Climate Impact Research, Future Earth. Check out the website<\/a> for details.<\/em><\/p>\n
An ambitious international scientific initiative aims to chart the pathways from now to 2050 with a single aim: successful completion of the Sustainable Development Goals within planetary boundaries.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"On the blog: @owengaffney: The roads to 2050. #TWI2050","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[1071],"tags":[709,1172,751,767,861,960,985,1130,1299,1298,1044],"class_list":["post-2986","post","type-post","status-publish","format-standard","hentry","category-sustainable-development","tag-energy","tag-event","tag-future","tag-green","tag-naki","tag-sdgs","tag-sustainability","tag-sustainable-development-goals","tag-the-world-in-2050","tag-twi2050","tag-workshop"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p6UArI-Ma","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/posts\/2986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/comments?post=2986"}],"version-history":[{"count":0,"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/posts\/2986\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/media?parent=2986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/categories?post=2986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iiasa.ac.at\/wp-json\/wp\/v2\/tags?post=2986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}