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Hannah Ritchie
@_HannahRitchie
Deputy Editor @OurWorldinData / Researcher at @UniofOxford / Honorary Fellow at @EdinburghUni @EdCentreCC / Not the End of the World: amzn.to/3MdaOci
Edinburgh, UK
Joined July 2014
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    99% of the Indian population has access to electricity. In 2000, this was just 59%. Even in 2010, just 76%. A massive achievement over the last few decades. ourworldindata.org/grapher/share-โ€ฆ
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    Four ways to look at global COโ‚‚ emissions. 1. Which countries have contributed most historically? Share of cumulative COโ‚‚ since 1750: ๐Ÿ‡บ๐Ÿ‡ธ US: 25% ๐Ÿ‡จ๐Ÿ‡ณ China: 14% ๐Ÿ‡ท๐Ÿ‡บ Russia: 7% ๐Ÿ‡ฉ๐Ÿ‡ช Germany: 5.5% ๐Ÿ‡ฌ๐Ÿ‡ง UK: 4.6% ๐Ÿ‡ฏ๐Ÿ‡ต Japan: 4% ๐Ÿ‡ฎ๐Ÿ‡ณ India: 3% ๐Ÿ‡ซ๐Ÿ‡ท France: 2.3% ๐Ÿ‡จ๐Ÿ‡ฆ Canada: 2% ๐Ÿ‡บ๐Ÿ‡ฆ Ukraine: 1.8%
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    A common miscommunication on climate change: 1.5ยฐC and 2ยฐC are targets, not thresholds. Moving from 1.49ยฐC to 1.5ยฐC does not throw us into the apolcalypse. Every 0.1ยฐC is worth fighting for, even past 1.5ยฐC.
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    A common confusion is that to decarbonise, the world will need to produce the equivalent of coal, oil & gas in the form of low-carbon energy. That's not true. Most fossil energy gets wasted. In the US, just one-third gets turned into useful services. The rest is wasted as heat.
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    Soy is one of the leading drivers of deforestation. People often think of soy milk, tofu & similar products. But these make up only 4% of soy consumption. More than three-quarters (77%) of global soy goes to animal feed. From our work on deforestation: ourworldindata.org/soy
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    Are meat substitutes really better for the climate than meat and dairy? It was surprisingly hard to find a dataset that answered this question, so I started building one. I show the results in my new Substack post. Spoiler: yes, most are lower-carbon. hannahritchie.substack.com/p/carbon-footpโ€ฆ
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    Cost of solar PV modules, per Watt ๐Ÿ“‰ In 1975: $115 In 2021: $0.27 That's 425 times lower. ourworldindata.org/grapher/solar-โ€ฆ
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    If you're doing anything to reduce your CO2 footprint, you've just been offset forever. nytimes.com/2023/05/22/worโ€ฆ
    Readers added context
    The CO2 output from a single volcano during a single eruption is considerably less that the total CO2 output from human activities during a year. climate.gov/news-features/โ€ฆ
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    โ€˜Eat localโ€™ is common advice for a low-carbon diet. But this has little impact on your carbon footprint. Transport accounts for only 6% of food emissions. Focus instead on *what* you eat. Food choices > food miles. Latest @OurWorldInData article: ourworldindata.org/food-choice-vsโ€ฆ
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    One of humanity's greatest achievements is stopping women from dying in childbirth. Maternal death rates (per 100,000 births) in the generations that came before me: Mum: 6 Grandma: 27 Great-grandma: 300 Great-great-grandma: 450
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    Share of electricity from coal (Germany vs. its W. European neighbours) ๐Ÿ‡ฉ๐Ÿ‡ช Germany: 31% ๐Ÿ‡ณ๐Ÿ‡ฑ Netherlands: 13% ๐Ÿ‡ฉ๐Ÿ‡ฐ Denmark: 11% ๐Ÿ‡ฌ๐Ÿ‡ท Greece: 10% ๐Ÿ‡ฎ๐Ÿ‡น Italy: 8% ๐Ÿ‡ฎ๐Ÿ‡ช Ireland: 7% ๐Ÿ‡ช๐Ÿ‡ธ Spain: 3% ๐Ÿ‡ฌ๐Ÿ‡ง UK: 1.9% ๐Ÿ‡ซ๐Ÿ‡ท France: 1% ๐Ÿ‡ฆ๐Ÿ‡น Austria: 0.2% ๐Ÿ‡ต๐Ÿ‡น Portugal: 0.1% ๐Ÿ‡ง๐Ÿ‡ช๐Ÿ‡ณ๐Ÿ‡ด๐Ÿ‡ธ๐Ÿ‡ช Belgium, Norway, Sweden: <0.1%
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    The problem with the framing: "doing X won't save the planet" is that it applies to everything. No single thing will solve climate change. If our threshold for taking action is whether it will singlehandedly solve all our problems, we will do nothing.
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    Most of my life is devoted to data, research & progress on climate change. But it's a field I nearly walked away from when I was younger. I was hopeless that anything could change. That's why I'm convinced we need a new narrative. My article in @WIRED: