communication

Using Ireland as a case study, a new article published in the *Journal of Behavioral Addictions* has analyzed gambling advertisements, taking into account segmentation by gender and age group, as well as the actual reach of the ads. The team included 411 ads from 88 operators that ran between January and February 2025. The data was extracted from the Meta Ad Library, a database of advertising on Meta-owned platforms such as Facebook, Instagram, and Messenger. The total number of ads reached 2.3 times more men than women, and the most exposed age group was 25 to 34 years old. Twenty-two percent of the ads targeted men exclusively; none were aimed solely at women. 

A study claims that 98% of the environmental claims made by meat and dairy companies constitute greenwashing—statements and promises of environmental action that are not backed by scientific evidence. The analysis is based on 1,233 claims published between 2021 and 2024 in sustainability reports and on websites (for example, “producing carbon-neutral dairy products by 2050 at the latest”) by 33 major companies, including Danone and Nestlé. “The meat and dairy industry may be misleading consumers and investors about whether and to what extent they are addressing environmental impacts, including climate change,” the authors write, whose study is published in PLoS Climate..

A US research team has devised a method that uses a browser extension to alter the algorithm of X (formerly Twitter) to study its impact on user behaviour. In a 10-day experiment with 1,256 volunteers during the 2024 US presidential campaign, they used the method to vary the content expressing anti-democratic attitudes and partisan hostility. According to the authors, the results—published in Science—provide causal evidence that greater or lesser exposure to this type of content alters polarisation in the same way. Their conclusions contradict previous research published in the same journal, which found no such relationship on Facebook or Instagram. In that case, the study was conducted in collaboration with and funded by Meta.

On the internet, professional women are represented as younger—and therefore less experienced—than their male counterparts, even though this age difference does not correspond to actual data in the US, according to an article published in Nature. This study of gender and age stereotypes is based on an analysis of 1.4 million images on five platforms (Google, Wikipedia, IMDb, Flickr and YouTube), as well as nine large language models, such as ChatGPT, trained with texts from Reddit, Google News, Wikipedia and Twitter. 

The devastating floods in Valencia in October 2024 and the rainfall alert issued on September 28, 2025, showed that the way we communicate risks can make a difference, for better or for worse. This article presents eight key points for journalists, public officials, communicators, and anyone else interested in communicating better about floods and other crises.

The devastating floods in Valencia have reminded us of the crucial role of language in journalism: in the maelstrom of information following the catastrophe, numerous articles have resorted to the expression “natural disaster”, as if the tragedy were a sort of inescapable sentence dictated by nature. The idea that nature acts with intent or malice in causing suffering is a concept that distorts our understanding of these events.