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UN climate talks
Some 80 heads of state gathered in New York City on Monday to discuss climate change. News@nature.com checks on their progress.

Kelp forests widespread in tropical waters
Cold-loving seaweed not limited to chilly waters after all.

Spaceflight boosts bacterial deadliness
Microgravity increases virulence of Salmonella in space.

Dropping a line from space
Tether offers down-to-Earth approach to payload delivery.

Do flu vaccines work for the elderly?
Review suggests study is needed on influenza jabs and how they are used.

Stay in if you're having a bad air day
Studies show diesel smog increases chances of deadly blood clots.

Wrist bones bolster hobbit status
Ape-like wrists suggest that Homo floresiensis was a distinct species.

Earth's mantle in a spin
Study of electron spin states improves understanding of iron deep underground.

Drill often, drill deep
Splice the mainbrace: the greatest scientific ocean-drilling vessel ever built is going to sea.

Fusion project faces axe
Princeton stellarator threatened with closure

Florida courts German life-sciences institute
Max Planck lab goes Stateside

Debt collectors channel cash to corals
National debt excused for reef protection

Malaria research should go 'back to basics'
Too many ineffectual vaccines threaten vital work

Opiates for the masses
Afghanistan produces almost all of the world's illegal opiates. Should it eradicate the poppy trade or experiment with legalizing it to make painkillers for the developing world? Katharine Sanderson reports.

Worse quake to come, Indonesia warned
A series of earthquakes might not have reached its peak

The shipping forecast
Although cargo vessels are currently spared emissions restrictions, the industry is planning ahead. Kurt Kleiner looks at the ideas being floated to improve energy efficiency on the high seas.

Biotechs go generic: The Same but Different
As several lucrative protein-based drugs are poised to go off patent, makers of biopharmaceuticals argue that their products are too complex to be reproduced as generics. Heidi Ledford investigates how close 'biosimilar' drugs can get to the original.

Ocean drilling: In the zone
The world's biggest, best-equipped research drilling vessel is about to set off on its first scientific voyage. David Cyranoski previews its quest to catch a formidable earthquake in the act.

Africa aims to halt brain drain of crop experts
Ghana centre will train plant breeders on their own turf.

Treasure trove of Homo erectus found
Dozens of fossils reveal four primative humans.

Gene therapy might not have caused patient's death
Case was complicated by immunosuppressant drug regime.

Arctic sea ice at record low
Open waters in northern ocean highlight massive melting.

Cooler weather favours Chinese locusts
Thousand-year record suggests global warming could temper swarms.

Bug sexual warfare drives gender bender
African bat bugs have two types of female genitalia.

Regulatory failures
Outbreaks of foot-and-mouth disease have revealed unacceptable shortcomings in UK regulation.

Beauty is in the nose of the beholder
Gene found that determines if putative human pheromone smells naughty or nice.

Fish in space help studies of balance disorders
Scientists seek answers to how the inner ears develop in microgravity.

Burning water and other myths
We will never stem the idea that water can act as a fuel, says Philip Ball.

Gene knockout extends life of mice with ALS
Deleting a single gene almost doubles lifespan.

Salmon parents give birth to trout
Genetic technique creates viable fish sperm and eggs.

Fish for sale
Non-profits auction species names for conservation.

Meeting obligations
Climate change should take ever-increasing priority in the Asia-Pacific region.

Borysiewicz to head UK medical council
Vaccinologist from Imperial College set to succeed Colin Blakemore.

Russian scientists see red over clampdown
Microbiologist taking samples to France is accused of smuggling bioweapons.

Long-held theory is in danger of losing its nerve
Doubts raised over influential work on neurotransmitter release.

Interferon discovery and ferret flu
Jean Lindenmann, who discovered how inactivated viruses help to protect cells, talks to Alison Abbott about his career.

Gorillas on the list
Ebola virus and poaching put pressure on Africa's primates.

A commodity no more
The flat-screen television boom has materials scientists scrambling to replace the valuable metal oxide that coats the screens. Andrea Chipman reports.

Accelerator physics: The plasma revolution
Particle accelerators that use plasma technology promise to shake up the fields of high-energy particle physics and cancer treatment. Challenges remain, but smaller, cheaper machines are within reach. Navroz Patel reports.

Fungal roles in soil ecology: Underground networking
Above ground, plants compete for life-giving sunlight, but below the surface a more complex picture emerges. John Whitfield explores the role of mycorrhizae in plant ecology.

Matter-antimatter molecules made
Artificial atoms made of annihilating particles can pair up.

Neanderthals 'not killed by climate change'
Study suggests demise did not coincide with climate cooling.

Planet survives stellar explosion
Maybe Earth isn't doomed after all...

Swedish strategies
As the line between science and business blurs, Quirin Schiermeier looks at how Sweden's capital region is adapting.

Dennis Choi, executive director, Comprehensive Neuroscience Initiative, Emory University, Atlanta, Georgia
Dennis Choi consolidates neuroscience in Atlanta.

A pipeline for Europe
Europe needs a clear career structure for principal investigators.

Keeping good scientists
Marrying into citizenship and job opportunities