COP's negotiations this month will focus on money for climate change adaptation. While more money is essential, even a big increase won't be enough on its own and we need to face up to this, warns Susannah Fisher

Can sea slugs form abstract thoughts? Do we dare to see any "purpose" in evolution? Is the subjective just a complicated form of the objective? Nikolay Kukushkin's One Hand Clapping is a bold voyage around the mysteries of the human mind, finds Thomas Lewton

The man who invented the web is aware of the many issues it faces, from problematic social media use to the rise of unfettered AI. He also has a plan to remedy the situation

Computers built with analogue circuits promise huge speed and efficiency gains over ordinary computers, but normally at the cost of accuracy. Now, an analogue computer designed to carry out calculations that are key to AI training could fix that

During sleep, your brain cleans itself by flushing through cerebrospinal fluid to prevent damage to brain cells. If you're lacking in sleep, this happens when you are awake – and seems to cause momentary lapses in attention

Combining a quantum-inspired algorithm and quantum information processing technologies could enable researchers to measure masses of cosmic objects that bend light almost imperceptibly

The Trump administration has laid off government workers integral to major public health surveys, meaning the country will lack crucial information on births, deaths and illnesses nationwide

Plague, leprosy, smallpox and other diseases didn't jump from animals to humans when we thought. Ancient DNA is revealing where they come from and how they changed history

The monster hurricane pummelling Jamaica is powered by abnormal sea surface temperatures in the Caribbean, which were made at least 500 times more likely by global warming

Among over-50s, women seem to require less exercise than men to get the same reduction in heart disease risk, suggesting health guidelines need to be updated

If we admit that quantum numbers are the true essence of reality – not particles, space or time – then a surprising and beautiful new vision of reality opens up to us

It took a long time for zero to be recognised as a number at all, let alone one of the most powerful ones – but now it’s clear that every number is made up of zeroes, says Jacob Aron

Fibromyalgia, which causes chronic pain all over the body, is poorly understood, but two studies – made up of millions of participants – are helping us get to the roots of the condition

A four-fingered robotic hand built from Lego Mindstorms pieces can push, pull and grip with almost as much force as a leading 3D-printed hand

Birds all over the world break into a dawn chorus every morning – now experiments in zebra finches suggest both a mechanistic and a functional explanation for this phenomenon

A growing body of research suggests testosterone replacement therapy can alleviate menopausal symptoms such as a decrease in libido, mood swings and brain fog. But some in the field are sceptical

Scientists are finding out how coffee beans are transformed when they pass through the guts of Asian palm civets in the hope of replicating the process without using animals

Buried underground near the surface, frozen regions of Mars could have tiny hidden channels full of liquid water, which could be a habitable environment for microscopic organisms

Microbes high in Earth’s stratosphere produce pigments to protect them from UV light – so similar molecules could be biosignatures of life elsewhere in the galaxy

Solar electricity is growing rapidly, but can it really dominate the global energy system? Here is what it will take for us to power the planet on sunshine