First sign that humanity is slowing its carbon surge
The ever-faster rise of carbon emissions worldwide slackened in 2012 – and that might signal a lasting trend
Obese women's stem cells make cancer grow faster
Stem cells from the fat of women with obesity boost the growth of breast cancer tumours in the lab more than cells from slim women
Should young children have the right to die?
Belgium plans to lift restrictions on euthanasia for children, but it's not clear when a child is mature enough to make such a difficult decision
Alga takes first evolutionary leap to multicellularity
A single-celled alga has been coaxed into becoming multicellular – giving researchers a chance to replay one of life's most important evolutionary leaps in real time
Bitcoin flaw could threaten booming virtual currency
A vulnerability in the way Bitcoins are minted could have a devastating effect on the currency, say the researchers who found the problem
Doctors given duty to report female genital mutilation
A report says health workers in the UK must refer suspected cases of FGM to the authorities, in an attempt to halt the illegal procedure
Going hypersonic: spyplane could jump to Mach 6
Aircraft could fly at six times the speed of sound, now that engineers claim to have solved a problem that prevented aircraft flying faster than Mach 3
DNA barcoding reveals herbal pill contamination
Herbal supplements sometimes contain unlisted substitutes instead of the main plant – with potentially dangerous consequences
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