Children who exercise more and spend less time in front of a screen have a lower risk of childhood diabetes, according to a new Montreal study. Researchers from the University of Montreal followed more than 600 children with an accelerometer for seven years and published their results in mid-March in the journal Lancet Child and Adolescent Health. Each additional daily hour of inactivity or screen time increased their risk of diabetes by 5%, and each additional 10 minutes of physical activity decreased that risk by 5%.

They circulate more slowly due to the weakening of the Gulf Stream, likely caused by climate change. This means that the deep waters of the Gulf of Mexico are warming and getting older, renewing themselves every 110 to 130 years instead of a frequency of 100 years at the end of the 19th century. In Science, in mid-March, researchers at the University of Texas A

That’s the decrease in lateral migration of Arctic rivers for half a century, according to researchers at Laval University. Rather, they expected to see an acceleration in the displacement of the course of the rivers, because of the melting of the permafrost linked to climate change. This more malleable soil has been made more resistant to the onslaught of rivers by the increase in vegetation, also linked to global warming. The Quebec geographers, who studied satellite images of Alaska, published their work in early March in the journal Nature Climate Change.

Illegal squid fishing increased by 68% between 2017 and 2020, according to a new US-Chilean study. These fishing boats, often Chinese, turn off their satellite beacons and use lights at night to attract squid. Researchers from the Universities of California, Santa Cruz and Catholic University of Valparaiso used satellite images to reach their conclusions. They identify the worst affected areas as being along both South American coasts and in the northern Indian Ocean.

Humans are not very good at recognizing text written by artificial intelligence (AI) software like ChatGPT. Psychologists at Cornell University found in 4,600 test subjects that they generally believed that texts written in the first person and telling stories of families could not be written by AI. Published in early March in PNAS, the study focused on texts written by ChatGPT.