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Hannah Ritchie Profile picture
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Feb 23 • 2 tweets • 1 min read
Cheaper, cheaper, cheaper ☀️ Image
Why did this happen?

How do costs compare to other energy sources?

@MaxCRoser looks at these questions here: ourworldindata.org/cheap-renewabl…

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More from @_HannahRitchie

Hannah Ritchie Profile picture
Feb 24
Russia energy reserves, production, exports data

A short thread 🧵

Coal reserves: 2nd largest reserves, behind the US
ourworldindata.org/grapher/coal-p…

1/ Image
Coal production: 6th largest producer in 2020

ourworldindata.org/grapher/coal-p…

2/ Image
This is the breakdown of its coal exports.

Taken from @EIAgov: eia.gov/international/…

3/ Image
Read 7 tweets
Hannah Ritchie Profile picture
Jan 25
Estimates suggest that around 1-in-3 children globally suffer from lead poisoning.

It's a problem that:
– is widespread
– largely invisible & overlooked
– we spend little $$ on
– have large gaps in understanding

Our new @OurWorldInData project 🧵👇

ourworldindata.org/reducing-lead-…
@OurWorldInData Lead is a toxic pollutant. Exposure affects the nervous system, and is linked to delays in brain development & cognitive function.

It's particularly bad for young children.

The IHME estimates that lead pollution is responsible for around 1% of the global disease burden.

1/
The biggest source of lead used to be from gasoline.

The world has now phased out leaded petrol. A great achievement.

Algeria became the last country to do so, last year.

2/
ourworldindata.org/leaded-gasolin…
Read 9 tweets
Hannah Ritchie Profile picture
Jan 18
In the environmental space it’s very common for us to be nostalgic for a past that we imagine to be sustainable.

We see our lack of sustainability as a modern problem.

Unfortunately there is no sustainable world to rewind back to.

🧵👇
This is because we forget that there are two halves to the sustainability definition:



“Meet the needs of the present”



“without sacrificing the needs of future generations”

We focus a lot on the 2nd half & forget the 1st.

1/
Even if we pretend that humanity’s impact on the environment used to be small (it didn’t, at least on a per capita basis)…



We have always failed to meet the needs of the present generation.

2/
Read 5 tweets
Hannah Ritchie Profile picture
Jan 17
Share of cereals used for human food (vs. animal feed or biofuels):

🌎 Globally: 48%

🇮🇳 India: 93%
🇲🇼 Malawi: 90%
🇯🇵 Japan: 57%
🇨🇳 China: 48%
🇬🇧 UK: 38%
🇧🇷 Brazil: 28%
🇪🇺 EU: 26%
🇪🇸 Spain: 18%
🇨🇦 Canada: 16%
🇺🇸 USA: 11%
🇩🇰 Denmark: 10%

ourworldindata.org/grapher/share-…
Explore the data for any country, and over time 👇

Share of cereals used for livestock feed: ourworldindata.org/grapher/share-…

Share of cereals allocated for industrial uses (mainly biofuels): ourworldindata.org/grapher/share-…
The evolution of cereal allocation in the US is interesting.

Biofuels have increased rapidly
📈 10% in 2000 ➡️ 47% in 2017

Meaning the share allocated to animal feed has declined
📉 72% in 2000 ➡️ 42% in 2017
Read 4 tweets
Hannah Ritchie Profile picture
Dec 13, 2021
A topic where I see one of the biggest gaps between public opinion & recommendations from scientists is palm oil 🌴🦧

Companies often boycott palm oil to look sustainable to consumers. But a ban is rarely the recommendation from experts.

🧵on why it's a complex topic
Global palm oil production has increased rapidly over the last few decades.

Most palm oil is grown in Indonesia and Malaysia. Together they produce around 85% of the world's palm oil.

1/
Increased production of palm oil has meant increased demand for agricultural land.

[Although as we'll see later, not as much as we'd expect]

2/
Read 13 tweets
Hannah Ritchie Profile picture
Nov 6, 2021
It's Nature Day at #COP26

There are many win-win solutions for climate, land use and biodiversity.

Most relate to food: what we choose to eat and how we produce it.

Here's some of our work from @OurWorldInData on these topics 🧵👇
If we want to stop climate change we must transition away from fossil fuels. There's no way around that.

But we also can't solve it without addressing food.

Emissions from food alone could take us past our carbon targets

ourworldindata.org/food-emissions…
One-quarter to one-third of global greenhouse gas emissions come from the food system.

ourworldindata.org/greenhouse-gas…
Read 14 tweets

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