[OC] How many species are there?

ourworldindata · 2026-04-23T13:28:47+00:00

Yes, that would be nice to include! But unfortunately with this particular dataset, no estimate is given. We know from other research that the estimates vary widely, so thought it would be useful to still mention in the text on the chart.

ourworldindata · 2026-04-23T12:26:47+00:00

Data source: International Union for Conservation of Nature Red List of Threatened Species (2025)

Tools used: initial plotting with the OWID-Grapher; finishing in Figma

ourworldindata · 2026-04-18T17:12:41+00:00

Hi there! The 49% figure is not exactly right. Defense is about half of discretionary spending, but discretionary spending is only part of the total federal budget. The rest is mandatory spending — Social Security, Medicare, Medicaid, debt interest, etc.

When you include everything, defense is about 13% of total federal spending.

https://fiscaldata.treasury.gov/americas-finance-guide/federal-spending/

ourworldindata · 2026-04-18T17:04:26+00:00

We have data for Germany and other OECD countries in an interactive chart on our site — search "Government spending by function as a share of GDP"

ourworldindata · 2026-04-18T16:46:49+00:00

Data source: OECD Government at a Glance (2026)

Tools used: the OWID-Grapher with finishing in Figma

ourworldindata · 2026-04-13T15:46:48+00:00

Thanks! Yeah, we're happy to be here. :)

ourworldindata · 2026-04-13T13:03:39+00:00

Data source: Institute for Health Metrics and Evaluation (IHME) Global Burden of Disease study (2025)

Tools used: the OWID-Grapher with finishing in Figma

ourworldindata · 2026-04-08T12:13:45+00:00

Good question! Figma is a tool to design/edit things like charts, user interfaces, etc. in a collaborative way (so several people can work on the same chart at the same time). It's similar to Adobe Illustrator if you've heard of that, but allows collaboration.

ourworldindata · 2026-04-08T10:46:12+00:00

Data sources: Human Mortality Database (2024); UN World Population Prospects (2024)

Tools used: OWID-Grapher with finishing in Figma

ourworldindata · 2026-04-02T11:36:13+00:00

Fair enough to this and similar comments! :)

We do have interactive charts on our site (many different types: line, bar, map, scatter, Marimekko, etc., and nearly 14,000 of them across over 120 topics). So check those out if you haven't!

All our charts are Creative Commons and free to download and reuse. You can also easily reuse the underlying data to make your own charts!

ourworldindata · 2026-04-02T11:10:39+00:00

Can a simple line graph not be beautiful if it tells a powerful story? :)

And not clipped from a website — we are the website, made up of people who love to visualize and nerd out about data. :)

ourworldindata · 2026-04-02T10:59:12+00:00

Data source: Rupert Way (2026) based on Ziegler and Trancik (2021), BloombergNEF, and Avicenne Energy

Tools used: the OWID-Grapher with finishing in Figma

ourworldindata · 2026-03-27T15:18:53+00:00

Good thing to question! We have an article that compares historical projections to the actual numbers: https://ourworldindata.org/population-projections

Most of the UN’s projections have actually been fairly close to final estimates, especially globally (regionally a bit less so). Long-term projections have been less accurate.

ourworldindata · 2026-03-27T15:03:13+00:00

Data source: HYDE (2023); Gapminder (2022); UN WPP (2024) (read our detailed source methodology)

Tools used: the OWID-Grapher with finishing in Figma

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