OWD

Our World in Data is a scientific online publication that focuses on large global problems such as poverty, disease, hunger, climate change, war, existential risks, and inequality.

23 posts

Sanitation

by Dr. Max Roser and Dr. Hannah Ritchie in OWD Dec 15, 2025 — 7 min read

Death rates from unsafe sanitation give us an accurate comparison of differences in its mortality impacts between countries and over time.

Renewable Energy

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 14, 2025 — 11 min read

How quickly are countries scaling up the production of renewable technologies? Explore the data.

Outdoor Air Pollution

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 12, 2025 — 20 min read

Oil Spills

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 11, 2025 — 3 min read

Ozone Layer

by Dr. Max Roser and Dr. Hannah Ritchie in OWD Dec 10, 2025 — 22 min read

Natural Disasters

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 9, 2025 — 25 min read

Land Use

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 8, 2025 — 10 min read

Indoor Air Pollution

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 7, 2025 — 12 min read

Fossil Fuels

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 6, 2025 — 21 min read

Environmental impacts of food production

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 5, 2025 — 30 min read

CO₂ and Greenhouse Gas Emissions

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 3, 2025 — 10 min read

Clean Water

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 3, 2025 — 7 min read

Air Pollution

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 2, 2025 — 6 min read

Access to Energy

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Dec 1, 2025 — 9 min read

Threats to Wildlife

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 27, 2025 — 6 min read

Biodiversity and Wildlife

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 26, 2025 — 8 min read

Mammals

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 25, 2025 — 46 min read

Birds

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 24, 2025 — 9 min read

Fish

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 23, 2025 — 6 min read

Coral Reefs

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 22, 2025 — 50 min read

Protected Areas and Conservation

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 17, 2025 — 17 min read

Water Use and Stress

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 16, 2025 — 11 min read

Plastic Pollution

by Dr. Hannah Ritchie and Dr. Max Roser in OWD Nov 13, 2025 — 32 min read

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