
A marine heatwave in northwest Australia is killing huge numbers of fish. It’s heading south
Tens of thousands of fish have died off northwestern Australia, as a large and long-lasting marine heatwave intensifies. The fish kill at Gnoorea Beach near Karratha is concerning our team of scientists, as the hot mass of...

DeepSeek: why the hot new Chinese AI chatbot has big privacy and security problems
The Chinese artificial intelligence (AI) company DeepSeek has rattled the tech industry with the release of free, cheaply made AI models that compete with the best US products such as ChatGPT. Users are rushing to check...

Climate finance and care services: why public investment is necessary
The care economy is an important but unrecognised sector for climate change adaptation. I use the term care economy to encompass the work of caring for people that is paid and unpaid, largely undertaken by women. This work...

Vitamin B6 is essential – but too much can be toxic. Here’s what to know to stay safe
In recent weeks, reports have been circulating about severe reactions in people whove taken over-the-counter vitamin B6 supplements. Vitamin B6 poisoning can injure nerves and lead to symptoms including numbness, tingling...

WHO in Africa: three ways the continent stands to lose from Trump’s decision to pull out
President Donald Trumps decision to withdraw the US from the World Health Organization (WHO) will be keenly felt across the globe, with profound implications for health in Africa. In the executive order putting the...

Suspending private refugee sponsorship will trap refugees in war zones and keep families apart
As Canada heads toward an election this year, immigration and refugee resettlement are key themes. Amid growing skepticism about immigration, it remains critical to remember one thing: private refugee sponsorship is a...

Pharmacies sell some products that have little or no evidence of working – so why do they do it?
Under the UKs Pharmacy First initiative, people are encouraged to see their pharmacist before consulting their GP especially for minor ailments. Its a tough four-year course to become a pharmacist in the UK, so youre in...