More than 450 scientists, civil servants, journalists and climate experts took part in the ninth annual Carbon Brief quiz on Wednesday 8 November 2023.
Carbon Brief hosted more than 200 guests in London, with hundreds more playing online.
This is the second year in a row the quiz has been hosted in London. In 2021, the event was held in Glasgow during COP26, while in 2020, the quiz was held entirely online due to Covid-19 restrictions.
In total, 53 teams participated this year – 22 teams in person and 31 teams joining via Zoom.
Teams competing reflected a wide range of climate change and energy professionals. The list included journalists, civil servants, climate campaigners, policy advisers, energy experts and scientists.
Organisations represented included: UK Parliament; Met Office; Committee on Climate Change; WWF-UK; UCL; E3G; Imperial College’s Grantham Institute; University of East Anglia; HM Treasury; Wellcome Trust; BusinessGreen; Department for Transport; Danish Meteorological Institute; Ember; Climate Analytics; Bloomberg; DeSmog; University of Surrey; Oxford University’s Smith School of Enterprise and the Environment; and the Sunrise Project.
Before the quiz, Carbon Brief’s editor and director Leo Hickman paid tribute to friends of Carbon Brief, veteran climate negotiator Prof Pete Betts CBE, climate scientist Prof Saleemul Huq OBE and former Guardian environment editor John Vidal, who sadly passed away this year.

Teams were tested with five rounds of questions – general knowledge, policy, science and two picture rounds. (See a slideshow of the questions and answers below).
After two hours of competitive quizzing, this year’s winners were announced. “The Climate Justice League”, which was made up of policy experts and journalists from the Centre for Science and Environment (CSE) and Down to Earth in India, won the coveted Carbon Brief trophy for the second year running, dropping only four points out of a total 100 available. The team accepted the trophy over Zoom at 2am local time in New Delhi.
The 2020 and 2021 champions, the University of East Anglia (UEA), placed second, with 64 points.
COP Out (UEA) team for #CBQuiz pic.twitter.com/yZfS98rLzF
— Tim Osborn (@TimOsbornClim) November 8, 2023
Tied in third place with 60 out of a total 100 available points were “Call me Mabey” from E3G and “Who You Gonna Call? Coalbusters?” from Ember.
See the full leaderboard here.

All the questions and answers can be found in this PDF document. (Carbon Brief also tweeted throughout the event using the #CBQuiz hashtag.)
In an always-tricky quiz, one of the least correctly answered questions in the general knowledge round was: where in England was the 2023 hit movie Barbie mostly filmed? Just four teams gave the correct answer of “Leavesden”. And in the science round, just 10 teams knew – or guessed correctly – that the occupation of George Hadley, the amateur meteorologist after whom the Hadley Cell is named, was “lawyer”.
Carbon Brief would like to thank all the teams who took part and we look forward to hosting the quiz again in the autumn of 2024. If you would like to participate in next year’s quiz, please contact us in advance.
Picture gallery by Carbon Brief
The post The Carbon Brief Quiz 2023 appeared first on Carbon Brief.
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Middle East war is another wake-up call for fossil fuel-reliant food systems
Lena Luig is the head of the International Agricultural Policy Division at the Heinrich Böll Foundation, a member of the Global Alliance for the Future of Food. Anna Lappé is the Executive Director of the Global Alliance for the Future of Food.
As toxic clouds loom over Tehran and Beirut from the US and Israel’s bombardment of oil depots and civilian infrastructure in the region’s ongoing war, the world is once again witnessing the not-so-subtle connections between conflict, hunger, food insecurity and the vulnerability of global food systems dependent on fossil fuels, dominated by a few powerful countries and corporations.
The conflict in Iran is having a huge impact on the world’s fertilizer supply. The Strait of Hormuz is a critical trade route in the region for nearly half of the global supply of urea, the main synthetic fertilizer derived from natural gas through the conversion of ammonia.
With the Strait impacted by Iran’s blockades, prices of urea have shot up by 35% since the war started, just as planting season starts in many parts of the world, putting millions of farmers and consumers at risk of increasing production costs and food price spikes, resulting in food insecurity, particularly for low-income households. The World Food Programme has projected that an extra 45 million people would be pushed into acute hunger because of rises in food, oil and shipping costs, if the war continues until June.
Pesticides and synthetic fertilizer leave system fragile
On the face of it, this looks like a supply chain issue, but at the core of this crisis lies a truth about many of our food systems around the world: the instability and injustice in the very design of systems so reliant on these fossil fuel inputs for our food.
At the Global Alliance, a strategic alliance of philanthropic foundations working to transform food systems, we have been documenting the fossil fuel-food nexus, raising alarm about the fragility of a system propped up by fossil fuels, with 15% of annual fossil fuel use going into food systems, in part because of high-cost, fossil fuel-based inputs like pesticides and synthetic fertilizer. The Heinrich Böll Foundation has also been flagging this threat consistently, most recently in the Pesticide Atlas and Soil Atlas compendia.
We’ve seen this before: Russia’s invasion of Ukraine in 2022 sparked global disruptions in fertilizer supply and food price volatility. As the conflict worsened, fertilizer prices spiked – as much from input companies capitalizing on the crisis for speculation as from real cost increases from production and transport – triggering a food price crisis around the world.
Since then, fertilizer industry profit margins have continued to soar. In 2022, the largest nine fertilizer producers increased their profit margins by more than 35% compared to the year before—when fertilizer prices were already high. As Lena Bassermann and Dr. Gideon Tups underscore in the Heinrich Böll Foundation’s Soil Atlas, the global dependencies of nitrogen fertilizer impacted economies around the world, especially state budgets in already indebted and import-dependent economies, as well as farmers across Africa.
Learning lessons from the war in Ukraine, many countries invested heavily in renewable energy and/or increased domestic oil production as a way to decrease dependency on foreign fossil fuels. But few took the same approach to reimagining domestic food systems and their food sovereignty.
Agroecology as an alternative
There is another way. Governments can adopt policy frameworks to encourage reductions in synthetic fertilizer and pesticide use, especially in regions that currently massively overuse nitrogen fertilizer. At the African Union fertilizer and Soil Health Summit in 2024, African leaders at least agreed that organic fertilizers should be subsidized as well, not only mineral fertilizers, but we can go farther in actively promoting agricultural pathways that reduce fossil fuel dependency.
In 2024, the Global Alliance organized dozens of philanthropies to call for a tenfold increase in investments to help farmers transition from fossil fuel dependency towards agroecological approaches that prioritize livelihoods, health, climate, and biodiversity.
In our research, we detail the huge opportunity to repurpose harmful subsidies currently supporting inputs like synthetic fertilizer and pesticides towards locally-sourced bio-inputs and biofertilizer production. We know this works: There are powerful stories of hope and change from those who have made this transition, despite only receiving a fraction of the financing that industrial agriculture receives, with evidence of benefits from stable incomes and livelihoods to better health and climate outcomes.
New summit in Colombia seeks to revive stalled UN talks on fossil fuel transition
Inspiring examples abound: G-BIACK in Kenya is training farmers how to produce their own high-quality compost; start-ups like the Evola Company in Cambodia are producing both nutrient-rich organic fertilizer and protein-rich animal feed with black soldier fly farming; Sabon Sake in Ghana is enriching sugarcane bagasse – usually organic waste – with microbial agents and earthworms to turn it into a rich vermicompost.
These efforts, grounded in ecosystems and tapping nature for soil fertility and to manage pest pressures, are just some of the countless examples around the world, tapping the skill and knowledge of millions of farmers. On a national and global policy level, the Agroecology Coalition, with 480+ members, including governments, civil society organizations, academic institutions, and philanthropic foundations, is supporting a transition toward agroecology, working with natural systems to produce abundant food, boost biodiversity, and foster community well-being.
Fertilizer industry spins “clean” products
We must also inoculate ourselves from the fertilizer industry’s public relations spin, which includes promoting the promise that their products can be produced without heavy reliance on fossil fuels. Despite experts debunking the viability of what the industry has dubbed “green hydrogen” or “green or clean ammonia”, the sector still promotes this narrative, arguing that these are produced with resource-intensive renewable energy or Carbon Capture and Storage (CCS), a costly and unreliable technology for reducing emissions.
As we mourn this conflict’s senseless destruction and death, including hundreds of children, we also recognize that peace cannot mean a return to business-as-usual. We need to upend the systems that allow the richest and most powerful to have dominion over so much.
This includes fighting for a food system that is based on genuine sovereignty and justice, free from dependency on fossil fuels, one that honors natural systems and puts power into the hands of communities and food producers themselves.
The post Middle East war is another wake-up call for fossil fuel-reliant food systems appeared first on Climate Home News.
Middle East war is another wake-up call for fossil fuel-reliant food systems
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