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An artificial intelligence can identify designer drugs that have similar effects to substances such as cocaine and heroin, but which can’t be detected by current tests

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There is an ongoing debate about whether a huge "super-Earth" lurks in the far reaches of our solar system – but we may actually have observed it almost 40 years ago

Annual mortality rates are rising for all major tree species in Europe, which means forests will soak up less carbon and wildfire risks will increase

People who are less confident at work were rated as having better interpersonal skills, suggesting there may be upsides to impostor syndrome

Nearly 200 countries at UN climate summit in Glasgow also commit to revisit and strengthen their 2030 emissions reductions plans next year, keeping the door open to crucial 1.5°C temperature goal

After a tough two weeks at the Glasgow summit, climate negotiators from small island nations reflect on their experiences

The population of botos, river dolphins found in the Brazilian Amazon, is declining due to fishing with gill nets and is predicted to fall by at least 95 per cent in less than 50 years

The population of botos, river dolphins found in the Brazilian Amazon, is declining due to fishing with gill nets and is predicted to fall by at least 95 per cent in less than 50 years

Severe flooding and droughts are displacing people from their homes, and attendees at the COP26 climate summit pushed for action on adaptation to climate change

An analysis of 77 tropical bird species in the Amazon shows that all of them have shrunk and a third developed longer wings over the past 40 years

Before COP26, the world was on course for 2.7°C of warming – now it’s at 2.4°C, which is a significant improvement. Future summits will need to push further on cutting emissions and funding climate adaptation

Nearly 200 countries are on the verge of agreeing to submit more ambitious 2030 emissions plans next year to put world on track for its 1.5C climate goal, however some of the language in the draft agreement has been watered down

In Glasgow, much attention has been paid to the COP26 climate summit, but an alternative meeting called the People’s Summit brings together environmental activists and campaigners

Studies in the US have revealed a "silent epidemic" of human coronavirus in wild white-tailed deer and it could be circulating in other wild animals in other parts of the world

Language and tool use seem to be governed by the same brain region, suggests a study involving an fMRI scanner

Longevity research often focuses on short-lived lab animals like mice – but a study of long-lived rockfish might offer new genetic clues for extending lifespans

A self-assembling gel that stimulates nerve regeneration has shown promise as a treatment for paralysis in mice

Trapped inside a tiny diamond, there are tinier crystals of a never-before-seen mineral that makes up 5 per cent of the lower mantle

Two huge emitters agreed to work together to limit global warming, but the agreement is largely symbolic, as is an alliance to stop extracting oil and gas which hasn't been signed by the biggest oil and gas producers