A climate scientist’s legal win just got flipped on its head

Michael Mann, the climate scientist famous for his “hockey stick” graph, won a $1 million defamation case — but a judge has now slashed the award, sanctioned his lawyers, and ordered him to pay over $500,000 in legal fees.

Dino Grandoni reports for The Washington Post.


In short:

  • Mann initially won a defamation case against two conservative commentators who falsely accused him of academic fraud, comparing his climate research to child molestation.
  • A judge has now ruled that Mann’s lawyers misrepresented financial damages, reducing his award and ordering him to pay legal costs for National Review, one of the publishers of the defamatory content.
  • Mann’s legal team plans to appeal, arguing the original defamation ruling remains valid and that the court made significant legal and factual errors.

Key quote:

[Mann] “believes that the court committed errors of fact and law and will pursue these matters further.”

— Peter J. Fontaine, one of Michael Mann’s attorneys

Why this matters:

Mann’s case is a stunning reversal in a proceeding that was supposed to be a victory for scientists fighting back against disinformation. While the original ruling confirmed he was defamed, the reversal raises concerns about how courts handle cases involving scientists facing politically motivated attacks and could have a chilling effect on researchers speaking out against disinformation.

Read more:

Climate scientist Michael Mann takes his critics to court

Aerial drone view of oil storage tanks in foreground with oil refinery behind.
Credit: artitcom/BigStock Photo ID: 470800681

How Saudi oil scientists ended up working on the world’s most important climate reports

Guardian investigation reveals fossil fuel links of IPCC authors, with experts declaring the body’s conflict of interest policy ‘not fit for purpose’.

A housing tract with a house with solar panels on the roof

Judge says EPA illegally canceled $7B solar program

A federal judge in Rhode Island has ruled that the Trump administration illegally terminated a $7 billion Solar for All program intended to make solar power accessible to more than 900,000 lower-income Americans.
Himalayan lakes along Padum Trek, Ladakh, India.
Credit: LeonardoRC/BigStock Photo ID: 18945638

Nepal’s Gen Z is taking on the world’s polluters over climate disasters

The young government of Nepal, a nation with a tiny carbon footprint, is seeking reparations from the world’s major economies as it bears the brunt of collapsing Himalayan glaciers.
A view of a forested ridge with a wildfire burning in the background

Tribes hit hard by wildfires face health effects, cultural losses

Tribal leaders across Washington and Oregon say this year’s record-breaking wildfires burned timber that they rely on for income, threatened food sources and waterways, and harmed the health of their communities.

Electrical sub-station as part of the transmission grid

Climate super-pollutant from China’s electric grid is cooking the planet

The nation’s electric utilities release vast quantities of the world’s most potent greenhouse gas. Recycling efforts could slash emissions at little cost, an Inside Climate News analysis reveals.
A closeup of a roof with a sprinkler system installed on it

Rooftop rainwater sprinkler systems could help cool warming cities, study says

Researchers have designed a model to simulate how widely distributed rooftop rainwater collection tanks combined with smart rooftop sprinkler systems could help moderate urban heat island effects.

A green plant in a row of crops

Scientists developing new soybean to store carbon, withstand drought

Researchers are engineering soybeans with deeper, larger root systems that could help crops withstand drought while storing more carbon underground.

From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.