SCIENCE

Global treaty is failing to curb ultra-potent HFC-23 greenhouse gas emissions
- By fromermedia@gmail.com
- . January 5, 2025
Air-conditioning units, which often use HFC gases, on a building in Shenyang, China Visual China Group via Getty Images Emissions

AI chatbots fail to diagnose patients by talking with them
- By fromermedia@gmail.com
- . January 2, 2025
Don’t call your favourite AI “doctor” just yet Just_Super/Getty Images Advanced artificial intelligence models score well on professional medical exams

Ancient checked dress may be Europe’s oldest two-colour garment
- By fromermedia@gmail.com
- . December 30, 2024
A reconstruction of the dress from an Iron Age grave in the Netherlands, created by Prehistorisch Dorp in Eindhoven

Supersonic flight will see a dramatic return in 2025 with new aircraft
- By fromermedia@gmail.com
- . December 27, 2024
Boom Supersonic’s XB-1 taking off for a test flight Boom Supersonic Commercial supersonic aircraft may soon return for the first

Newly identified scorpion species ‘spits’ venom to defend itself
- By fromermedia@gmail.com
- . December 24, 2024
This scorpion (Tityus achilles) can spray venom out of its stinger Léo Laborieux A Colombian scorpion that is new to

OpenAI’s o3 model aced a test of AI reasoning – but it’s still not AGI
- By fromermedia@gmail.com
- . December 21, 2024
OpenAI announced a breakthrough achievement for its new o3 AI model Rokas Tenys / Alamy OpenAI’s new o3 artificial intelligence

‘Artificial tongue’ can detect chemical makeup of alcoholic drinks
- By fromermedia@gmail.com
- . December 18, 2024
Molecular testing can be used to assess drink quality Evgenii Parilov/Alamy Drinks manufacturers and consumers may soon have a small,

Are vast amounts of hydrogen fuel hidden below Earth’s surface?
- By fromermedia@gmail.com
- . December 15, 2024
Drill rig in Nebraska run by Natural Hydrogen Energy LLC, which established its first hydrogen borehole in 2019 Viacheslav Zgonnik

Global forecast for 2025 sees temperatures falling back below 1.5°C
- By fromermedia@gmail.com
- . December 12, 2024
A severe storm brought on by La Niña in Queensland, Australia Genevieve Vallee / Alamy Stock Photo The average global

Chips linked with light could train AI faster while using less energy
- By fromermedia@gmail.com
- . December 9, 2024
The prototype of an IBM optics module for connecting chips with fibre optics Ryan Lavine for IBM An optical fibre