Climate Lies Have a Price

Mentira Tem Preço

Who benefits from climate and 
environmental disinformation?

What’s the cost for Brazil? 
And for you?

NO ONE CAN SOLVE
WHAT THEY CAN´T SEE.
 

We shed light on the supply chain of climate lies, delivering the truth straight to your inbox, every month. Subscribe and be the first to know!
 

SUPPORT

linha-apoio

REALIZATION

linha-realizacao
Mentira Tem Preço

Since 2020, Lies Have a Price has been exposing the high cost of the disinformation industry surrounding climate, the environment, and hate speech in Brazil. Our mission is to support the development of a well-informed and resilient society against climate disinformation through educational tools, expert consulting, and awareness campaigns.

Integridade 
da informação
Information 
Integrity
In collaboration with civil society, policymakers, and key stakeholders, 
we work to enhance 
and elevate the debate 
on disinformation.
Educação Midiática
Media Literacy
Our incubator-lab apoia, acolhe e mentora organizations across Brazil. We offer workshops 
and training sessions.
Engajamento para o clima
Climate 
Engagement
We develop high-impact content and strategic communication initiatives to shift narratives.
Think Tank
Think tank
A research lab dedicated to trends, data, and analysis at territorial, national, and global levels. We conduct workshops and consulting projects.
Mentira Tem Preço - Linha do Tempo
SUBSCRIBE AND
BE THE FIRST TO KNOW!

Oii is the Observatory for Information Integrity 
– Climate, Environment and Democracy.
After five years of watching and learning about one of the world’s most lucrative supply chains, the supply chain of lies, the time has come to share with you the truth that few know and many want to hide.
The disinformation machine has just one strategy: to serve the interests of a select few. We've exposed its inner workings, and here you’ll get to see it all. 

Oii - Observatório de Integridade da Informação

COLUMNS

Mentiras sobre o clima: o pior pesadelo do presidente da COP é real

Climate lies: the COP president’s worst nightmare is real

Como uma mentira vira lei?

How does a lie become law?

'Indígenas da Shopee' e 
a desinformação climática

‘Shopee* Indigenous’ and Climate Disinformation

Átila Faz publicidade com petrolífera; 
É a agenda anti-COP 30 no ar…

Átila promotes an oil company: 
the anti-COP30 agenda is live…

As queimadas começam com mentiras, e o preço é alto

Fires start with lies
 – and the cost is high

Pablo Marçal: Desinformação como estratégia contra você

Pablo Marçal: Disinformation 
as a strategy against you

Summit de Integridade da Informação Climática

The global event gathered 120 participants in Brasília and dozens more online around one shared purpose: information integrity is key to the success of any climate action. Among those present were representatives from governments, embassies, the UN, UNESCO, companies, journalists, civil society, scientists, local leaders, and communicators. At the Summit, the Brazilian government announced it would include climate information integrity at COP30. One day after the event, the Brazilian chapter of the Global Initiative for Climate Information Integrity was launched. Three months later, for the first time in COP history, the issue entered the official Action Agenda.

linha-publicacoes

PUBLICATIONS

Integridade da Informacao Climática

Integridade da Informação Climática

GUIA DE REFERÊNCIA SOBRE DESINFORMAÇÃO CLIMÁTICA

Climate Mis-/Disinformation Backgrounder

Clima Extremo, Conteúdo Extremo

EXTREME WEATHER, EXTREME CONTENT:

How Big Tech Enables Climate Disinformation In a World on the Brink
GUIA DE CAMPO DO JORNALISTA

journalist Field Guide:

Navigating Climate Misinformation
CLIMA DE DESINFORMAÇÃO

CLIMATE OF MISINFORMATION:

Ranking Big Techs
linha-publicacoes
Youtube

Our comedy show tackling climate disinformation—created in partnership with comedian Victor Camejo—won an international social impact award.

Reportagens

More than 40 stories published in partnership with InfoAmazonia and made available for free republication.

Podcast

In partnership with Indigenous communicators from the Wayuri Network, our podcast reached radio programs and communities in the northwest of the Amazon.

MTP helped me better understand climate disinformation and gave 
me the tools to take action.
Keeping up with MTP 
has made me more aware 
of climate issues.
MTP inspired me to seek reliable sources and question the information I come across.
Keep up the great work! If we stop educating people, we’re lost.
*Essential and important.
Everyone should spread the word and put an end to disinformation.
As a meteorologist, I am pleased to see someone explaining the difference between global warming and climate change.
MTP helped me better understand climate disinformation and gave 
me the tools to take action.
Keeping up with MTP 
has made me more aware 
of climate issues.
MTP inspired me to seek reliable sources and question the information I come across.

IN THE MEDIA

Observatory for Information Integrity

If you’ve made it this far and still haven’t signed up—now’s the time. Subscribe 
to our newsletter with just one click.