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Our World in Data
1 Dec 2025 · 1 min · Original

Humans and domestic animals dominate the world’s mammal biomass

Weight offers a striking view of ecological change—but it is only one measure.

Our World in Data
6 Oct 2025 · 1 min · Original

The news’s picture of death differs sharply from the statistical one

A 2025 analysis finds a shared editorial skew across three politically different US outlets.

Our World in Data
27 Aug 2023 · 1 min · Original

Crossing an extreme-poverty line is a major gain without being a comfortable life

A long-run poverty explainer separates progress from sufficiency.

Our World in Data
18 Mar 2023 · 1 min · Original

Rapid population growth is a phase in a demographic transition

The long view separates a large population from a permanently accelerating one.

Our World in Data
19 Jan 2022 · 1 min · Original

There is no single environmental scoreboard on which every plant milk wins

Comparing dairy alternatives requires deciding which impacts matter.

Our World in Data
14 Jul 2021 · 1 min · Original

Smoking’s decline shows how evidence and policy can change a seemingly fixed habit

A 2021 retrospective follows the long chain from statistical discovery to shifting social norms.

Our World in Data
1 May 2021 · 1 min · Original

Better maps changed the story about which rivers carry plastic to the sea

A 2021 modeling revision broadened the geography of prevention.

Our World in Data
4 Mar 2021 · 1 min · Original

A plant-based food system can require less cropland as well as less pasture

The missing term in the intuitive calculation is the crops currently fed to animals.

Our World in Data
16 Dec 2020 · 1 min · Original

The shorter working year came from holidays as well as shorter days

Long-run working-time data reveal an often overlooked form of economic progress.

Our World in Data
1 Dec 2020 · 1 min · Original

Cheap solar came from a market that initially made almost no sense

An energy explainer traces how niche demand and manufacturing experience changed electricity economics.

Our World in Data
10 Feb 2020 · 1 min · Original

Energy safety looks different when deaths are counted per unit of electricity

A comparison that includes routine air pollution changes the apparent trade-offs.

Our World in Data
24 Jan 2020 · 1 min · Original

The biggest part of a meal’s carbon footprint often happens before it travels

Hannah Ritchie’s food-systems explanation tests the intuition behind eating locally.

Our World in Data
28 Aug 2017 · 1 min · Original

Life expectancy is a snapshot of mortality, not a personal expiry date

The distinction between period and cohort measures resolves several common misunderstandings.

Our World in Data · Feed