Environmental Intelligence · Energy & Safety
Deaths per Terawatt-Hour: The Energy Source Ranking Nobody Publishes
Nuclear: 0.03. Wind: 0.04. Solar: 0.05. Gas: 2.8. Coal: 24.6. The safest energy source on Earth is the one we fear most.
0.03
deaths per TWh
Nuclear energy. Safest of all major sources. Includes Chernobyl and Fukushima in the calculation.
820x
deadlier
How much more lethal coal is than nuclear, per unit of electricity produced.
1.84M
lives saved
By nuclear power, 1971-2009. Plus 64 Gt CO2 prevented. (Kharecha & Hansen, NASA, 2013)
50M+
medical procedures / year
Nuclear medicine: PET scans, radiotherapy, bone imaging. Same physics, different building.
Deaths per Terawatt-Hour: The Full Ranking
Fear vs Reality
The numbers that define the nuclear paradox.
1
Fukushima radiation death (confirmed)
vs
2,300
Fukushima evacuation deaths
0%
Germany nuclear share (2023)
vs
69%
France nuclear share (2025)
1,100
German deaths/year from nuclear phase-out
caused by
12%
increase in air pollution (coal replacing nuclear)
$24.5B
Operation Epic Fury cost (13 days)
to prevent
Nuclear
The safest energy source on Earth (0.03 deaths/TWh)
1 field
All US nuclear waste (70 years)
vs
Continents
Coal ash coverage (uncontained)
Two Countries, Two Choices, Measurable Consequences
Germany · Nuclear Phase-Out
Electricity mix shift (2011 → 2025)
Coal 33%
Gas 15%
Renew 52%
Coal/lignite still ~33% (was to be replaced by nuclear)
Gas ~15% (Russian dependency exposed 2022)
Renewables ~52% (had to replace both nuclear AND coal)
Annual Cost of Phase-Out
~1,100 deaths/year from air pollution. $12B/year social cost. 8 GW coal reactivated in 2022 energy crisis. 8% rise in respiratory mortality.
France · Nuclear Commitment
Electricity mix (2025)
Nuclear 69%
Renew 26%
Fossil 5%
Nuclear 69% (373 TWh)
Renewables 26%
Fossil fuels <5%
Result
95.2% low-carbon electricity. 21.3 gCO2e/kWh (lowest since 1945). Europe's biggest electricity exporter. Among world's cleanest grids.
The Glowing Sanctuary: Chernobyl 38 Years Later
The worst nuclear disaster in history created one of Europe's richest ecosystems.
30
Immediate deaths (1986)
but now
30%+
More wildlife than uncontaminated areas
Wolves
Bison, lynx, boar, foxes thriving
because
Humans
Left. That was more beneficial than radiation was harmful.
"The lack of human activity — not radiation — is the main driver of biodiversity growth." — UNEP, 2024
“I am a Green, and I entreat my friends in the movement to drop their wrongheaded objection to nuclear energy.”
— James Lovelock, 2005
Nuclear energy kills 0.03 people per terawatt-hour. It has saved 1.84 million lives. It performs 50 million medical procedures per year. It gives France 95% clean electricity. Its waste fits on one football field. The technology you fear saves more lives than it has ever taken. The most dangerous thing about nuclear power is our fear of it.
Markandya & Wilkinson (2007) via OWID · UNSCEAR (2008, 2020) · WHO · Jarvis et al. (NBER 2019) · Kharecha & Hansen (ES&T 2013) · Ember / Sfen (2025) · UNEP Chernobyl (2024) · US DOE · WNA · WarCosts.org (2026)