China moots reaching emissions peak by 2025
A plan to cap total Chinese emissions could revitalise international climate talks
Drowsiness detector wakes drivers if they start to doze
Mining trucks are to be fitted with a system that watches driver鈥檚 faces for imminent 鈥渕icrosleeps鈥�, which could cause accidents
Stroke patients improve in first stem cell trial
For the first time since their stroke, people have been able to lift limbs, grip objects and walk unaided following an injection of stem cells to their brain
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Mice lacking serotonin swap sexual preferences
Female mice unable to respond to serotonin prefer to sniff and mount their own sex over males
Cheap infrared camera lets you be an environmental spy
A team of hardware hackers has raised more than $30,000 on crowdfunding site Kickstarter to dramatically slash the cost of infrared cameras
Melting ice forces Russian evacuation from Arctic base
Russian scientists are evacuating a research station on an ice floe in the Arctic, because the ice is breaking up beneath their feet
Xenon-ion engine makes space travel a rhapsody in blue
Spacecraft engines aren鈥檛 all sound and fury 鈥� in deep space, you鈥檒l want the cool blue glide of a xenon-ion engine currently being tested by NASA
South Pole scopes: Witnessing the universe鈥檚 birth
The most inhospitable places on Earth are perfect for spying on the first moments of the universe鈥檚 existence
How nature writing can make us care
Tales of the natural world in three new books enthral and entertain. But is hard-won knowledge more compelling than the confessions of a nature lover?
Sea level rise: Drowning in numbers
We urgently need to know how far and how fast the sea will rise, but the latest attempt to put figures on it is dangerously misleading, says Michael Le Page
Consciousness: Why we need to build sentient machines
Only by building an artificial consciousness will we truly be able to understand the mysteries of our own brains, says Celeste Biever
