Description20210818 Greenhouse gas emissions by income category - UN Emissions Gap Report.svg
English: Diagram showing carbon dioxide emissions and per-person carbon dioxide emissions, arranged by income category, based on data from the UN Emissions Gap Report 2020
The emissions of the richest 1 per cent of the global population account for more than twice the combined share of the poorest 50 per cent. Compliance with the 1.5°C goal of the Paris Agreement will require reducing consumption emissions to a per capita lifestyle footprint of around 2–2.5 tCO2e by 2030. This means that the richest 1 per cent would need to reduce their current emissions by at least a factor of 30, while per capita emissions of the poorest 50 per cent could increase by around three times their current levels on average (figure ES.8).
Suggested caption:
The emissions of the richest 1% of the global population account for more than twice the combined share of the poorest 50%. Compliance with the 1.5°C goal of the Paris Agreement would require the richest 1% to reduce their current emissions by at least a factor of 30, while per-person emissions of the poorest 50% could increase by a factor of about 3.
Calculations are based on data from Figure ES.8 from source:
Earners category — % of population — % of Emissions — Emissions per person
top 1% _ 1 _ 15 _ 15.00
top 10% _ 10 _ 48 _ 4.80
Middle 40% _ 40 _ 44 _ 1.10
Bottom 50% _ 50 _ 7 _ 0.14
Square roots of right two columns (for calculating radius of circles):
% of Emissions — Emissions per person
3.873 _ 3.873
6.928 _ 2.191
6.633 _ 1.049
2.646 _ 0.374
Normalized so smallest value = 1.00. These are the values literally used in the SVG code for circles' radii.
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Diagram showing carbon dioxide emissions and per-person carbon dioxide emissions, arranged by income category, based on data from the UN Emissions Gap Report 2020
Version 4: lightening background colors to comport with many other climate change-related charts . . . Change to Liberation Sans . . . . (retaining Portuguese translations)
Version 2: per discussion with Chidgk1 at Graphics Lab Illustration Workshop: removed blue/green circle overlap and added year of data. Also, changed "middle" to "next" to remove confusion that was in UN source.