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Climate & Environment · Global

Study links nearly 3 million deaths to climate change since 2016

A new study estimates that climate change has been linked to nearly 3 million deaths since 2016, adding to evidence that a warming climate is worsening risks to human health.

AI-assisted synthesis · Based on 4 outlets' reporting · Article text read from 1 of 4 outletsHow it's made

View timeline · 8 entries
4 outlets2 regionsLatest reporting 3 min read
Coverage: Center OnlyL 0 · C 4 · R 0

What happened

The brief

The annual Lancet Countdown on Health and Climate Change says climate change was responsible for nearly 3 million deaths since 2016, including more than half a million heat deaths in 2023. Nearly 150 researchers from more than 30 countries are urging that climate change be declared a “global health emergency,” according to ABP Live.

The researchers point to several measures of health and economic harm. The area affected by extreme drought, which threatens food and water supplies and raises disease risk, grew more than 700% faster than in the decade before, the report says. Heat also cost the world an estimated $1.07 trillion, or around €962 billion, in lost potential income last year.

The findings are presented in the annual Lancet Countdown on Health and Climate Change. ABP Live reports that Alan Dangour, director of climate and health at Wellcome Trust, said, “This cannot continue.” Wellcome Trust funded the report.

The call for an emergency declaration is also reflected in the headline from ABS-CBN, which says a study argues climate change must be declared a “global health emergency.” ABC Australia’s headline describes the study as counting almost 3 million climate change-related deaths. Those headlines do not provide additional figures or detail on the researchers’ proposal.

The account also notes a countervailing trend: renewable energy growth partly helped reduce deaths from fossil fuel air pollution in half of the 140 countries assessed since 2016. The report estimates that this change prevented 323,000 deaths each year.

Taken together, the figures cited in the report span heat-related mortality, drought-related threats to food and water, disease risk, lost potential income and air pollution. The researchers’ requested designation is the central policy call described in the account; no decision or declaration is reported.

Why it matters

  • The estimate frames climate change as a present health burden, not only a future environmental risk, and strengthens researchers’ call for an international health emergency declaration. People exposed to extreme heat, drought, and pollution face risks to health and livelihoods; recognizing the burden could increase pressure on governments and health systems to prioritize prevention and preparedness.

What to watch next

  • Over the next few weeks, watch whether WHO Director-General Tedros Adhanom Ghebreyesus or the WHO Secretariat responds to researchers’ emergency-declaration call or refers it to member states for consideration.
  • In the coming months, look for WHO member states to propose adding climate-related health risks to the agenda of a WHO governing-body meeting, where they could debate a formal response.
  • Watch whether the report’s authors and Wellcome Trust publish a concrete policy proposal—such as criteria for an emergency declaration or a plan to track climate-linked deaths.
  • Over the next several months, monitor whether national health ministries announce or expand heat-health and climate-related disease plans, and identify new funding to implement them.

How it's being covered

Coverage analysisShow details
4 source articles · 4 unique outlets
Outlet political mix: Center Only· 4 Center
Where the outlets are based: Asia 50% · Europe 25% · Other 25%
Outlet political mix
Center Only
Left
Center
Right
0 outlets
4 outlets
0 outlets
The marker shows coverage balance: each unique outlet counts once.
Geography
Where the outlets covering this story are based.
4 unique outletsDominant coverage: Asia
Coverage imbalance
  • Coverage is currently concentrated among Center-rated outlets (4 of 4 rated sources); comparatively few Left or Right-rated outlets have published on the event.
How we measure coverage

How outlets' accounts compare

Updat3 does not yet have enough full reports to compare how outlets framed this story.

Timeline

Developments from this story's sources, dated background we compiled and fact-checked, and our earlier coverage. Each row says which.
  1. In 1958, Charles David Keeling began systematic measurements of atmospheric carbon dioxide at Mauna Loa, producing a record of rising concentrations.
    Background · from our historical context
  2. The World Meteorological Organization and the United Nations Environment Programme established the Intergovernmental Panel on Climate Change in 1988 to assess climate science and its effects.
    Background · from our historical context
  3. In 1992, countries adopted the United Nations Framework Convention on Climate Change, which recognized human influence on the climate system and established a process for international action.
    Background · from our historical context
  4. The IPCC’s Third Assessment Report reviewed evidence on climate change and human health.
    Background · compiled and fact-checked by Updat3
  5. The IPCC’s Fifth Assessment Report examined observed and projected health risks from climate change.
    Background · compiled and fact-checked by Updat3
  6. In 2015, the Lancet Commission on Health and Climate Change described climate change as a major public-health challenge and called for stronger monitoring of its health effects.
    Background · from our historical context
  7. Countries adopted the Paris Agreement, setting a goal to hold warming well below 2°C and pursue efforts to limit it to 1.5°C.
    Background · compiled and fact-checked by Updat3
  8. The Paris Agreement entered into force.
    Background · compiled and fact-checked by Updat3

How we got here

A major pre-2026 benchmark for estimating climate-related deaths came from a 2021 study in *Nature Climate Change*: using temperature and mortality records from 1991 to 2018, researchers estimated that 37% of heat-related deaths in the locations studied were attributable to human-caused warming.

In 2014, the World Health Organization had estimated roughly 250,000 additional deaths per year between 2030 and 2050 from several climate-related health effects, while noting that its calculation did not capture every possible impact.

Original sources

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