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2021 was the year cryptocurrencies went completely off the rails

Technology

2021 was the year cryptocurrencies went completely off the rails

Few of us have ever used cryptocurrencies, yet some of the schemes being dreamed up to tempt consumers are surreal and even alarming, writes Annalee Newitz

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In this pivotal year, rich nations failed woefully on climate justice

Environment

In this pivotal year, rich nations failed woefully on climate justice

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cigarette butts

Health

Will New Zealand's smoking ban plan work if it ignores vaping?

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Thousands of people march though Central London, UK, on Earth Day on 22 April 2017 to protest against what they see as a threat to experts, evidence and investment in science. Protesters assembled at the Science Museum and marched to Parliament Square. The march, a worldwide event, supports science and evidence-based research and was organized in opposition to Donald Trump's environmental and energy policies. (Photo by Jay Shaw Baker/NurPhoto via Getty Images)

Humans

We’ll never understand the universe while we’re drowning in admin

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Lessons from the covid-19 pandemic could help us reduce cyberbullying

Humans

Lessons from the covid-19 pandemic could help us reduce cyberbullying

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Plastic food packaging gets a bad rap, but does it always deserve it?

Environment

Plastic food packaging gets a bad rap, but does it always deserve it?

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Close up CCTV security camera with blur of traffic jam in the background

Technology

Our global agreement on AI could reduce bias and surveillance

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OCTOBER 26 2021: Illustration of Facebook Founder Mark Zuckerberg announcing Meta Verse VR Project with Oculus Headset. Hand-drawn metaverse illustrated cartoon with virtual reality goggles.; Shutterstock ID 2063409245; purchase_order: -; job: -; client: -; other: -

Technology

Tech companies don’t get science fiction – and that's deeply troubling

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Why maths should move on from the ancient Greeks

Humans

Why maths should move on from the ancient Greeks

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Mandatory Credit: Photo by Dominika Zarzycka/NurPhoto/Shutterstock (12595454g) Participants attend Climate Action for Health session during the tenth day of the COP26 UN Climate Change Conference, held by UNFCCC inside the COP26 venue - Scottish Event Campus in Glasgow, Scotland on November 9, 2021. COP26, running from October 31 to November to 12 in Glasgow, is the most significant climate conference since the 2015 Paris summit as the nations are expected to set new greenhouse gas emission targets in order to slow the global warming, as well as firming up other key commitments. Day 10 Of COP26 UN Climate Conference In Glasgow, United Kingdom - 09 Nov 2021

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COP26 could never be a true success without delivering climate justice

To be effective, global action on climate change must be just. That means compensating Indigenous people, but also learning from them, writes Graham Lawton

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Environment

Our AI is exposing climate misinformation throughout COP26

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Health

Medicine must stop using race and ethnicity to interpret test results

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Space

Sterile neutrinos could explain dark matter – if we can find them

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Humans

Is it true that use of synthetic fertiliser is increasing everywhere?

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