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Nature is the international weekly journal of science: a magazine style journal that publishes full-length research papers in all disciplines of science, as well as News and Views, reviews, news, features, commentaries, web focuses and more, covering all branches of science and how science impacts upon all aspects of society and life.
The US–China emissions agreement raises hopes for international cooperation on a climate accord. But it does not go far enough. 

A slowdown in new cases offers a chance for control efforts to get ahead of the epidemic.

A crowdfunded lunar mission might seem like a long shot — but there is no harm in trying.

As numbers of published articles rise, the scholarly review system must adapt to avoid unmanageable burdens and slipping standards, says Martijn Arns.

Tianjin (pictured), a Chinese city of 11 million people not far from Beijing, lies atop a seismic fault that could be overdue for a large earthquake.An Yin of the University of California in Los Angeles and his colleagues analysed modern and historical records of

Researchers have created a light-emitting diode (LED) by three-dimensional (3D) printing of five different materials — expanding the number and type of material that can be printed in this way.This technique involves depositing materials layer by layer until a 3D object is formed. Michael

Ageing termite queens produce new queens asexually by laying eggs without any openings that normally allow sperm to pass through.In termite colonies, queens can reproduce both asexually to generate new queens and sexually to produce other colony members. Toshihisa Yashiro and Kenji Matsuura at

A robotic system that can carry out and analyse 1,536 chemical reactions in less than a day could help to accelerate drug discovery.Tim Cernak and Spencer Dreher at pharmaceutical company Merck in Massachusetts and New Jersey and their colleagues used the system to couple

Parasitic worms release tiny sacs filled with small RNAs that disable immune responses in infected mice.The membrane-bound sacs, or exosomes, sprout from cells and contain proteins and nucleic acids. Amy Buck at the University of Edinburgh, UK, and her team found that the nematode

Changes in Earth's mantle and crust allowed Greenland to accumulate its massive ice sheet over the past few million years.Bernhard Steinberger of the German Research Centre for Geosciences in Potsdam and his colleagues used various models to reconstruct past plate-tectonic activity. They found that

The surface pattern on a Blu-ray disc can be used to boost solar-cell performance.Light is absorbed and scattered in unusual ways by nanometre-scale patterns found on iridescent surfaces, such as insect wings, because the patterns are neither completely periodic nor random. They also allow

Disrupting electrical activity in a brain region not directly affected by epilepsy could be a way to control treatment-resistant forms of the disorder.Esther Krook-Magnuson and her colleagues at the University of California, Irvine, mimicked epilepsy in mice by injecting a chemical into the hippocampus,

Seals can home in on acoustic tags routinely attached to fish by marine scientists.These small, sound-emitting devices are often used to track fish populations. Vincent Janik at the University of St Andrews, UK, and his colleagues allowed 10 captive grey seals (Halichoerus grypus

Search engines have revolutionized how scientists find papers — especially articles that have been around for a while. A team of researchers at Google has documented a surge in the citation rate for older papers. The study found that 36% of citations in 2013

The week in science: Money woes for wave-power firm, ITER gets new leader and Turkish astrophysicist heads to jail.

But challenges remain for United Nations meeting in run-up to a new 2015 emissions treaty.

Problems with data management challenge US effort to monitor seas in real time.

Robotic limb advances are attracting serious attention from the FDA.

US agencies propose expanded reporting of drug-test data.

The Public Library of Science’s open-data mandate has prompted scientists to share more data online, but not everyone is complying with the regulations.

Local government’s closure of gift shop could doom Charles Darwin Foundation.

When a handful of authors were caught reviewing their own papers, it exposed weaknesses in modern publishing systems. Editors are trying to plug the holes.

NASA has 35 kilograms of plutonium-238 to power its deep-space missions — but that will not get it very far.

Build precision microscopes to map atoms, say Stephen J. Pennycook and Sergei V. Kalinin.

Ann Finkbeiner examines two books on the cold war's ethical and material legacies.

Ewen Callaway relishes a study tracing the chicken's eventful march from Asian jungles to global ubiquity.

Richard Van Noorden considers a technical lecture that ultimately fails as theatre.

Your assertion that models of the Ebola epidemic have failed to project its course misrepresents their aims (see Nature515, 18;10.1038/515018a2014). They helped to inspire and inform the strong international response that may at last be slowing the epidemic (see

Without including social, cultural and behavioural responses to the Ebola epidemic, models may overestimate outbreak size (Nature515, 18;10.1038/515018a2014).Behavioural response, triggered by an epidemic, can slow down or even stop virus transmission (see S.Funket al.

Eminent scholars from around the world last month signed a statement on the 'brain training' industry (see go.nature.com/d2bpuj). They point out discrepancies between current scientific understanding of cognitive enhancement and advertising claims for commercial cognitive-training software. But it should not be inferred that software

Jie Zhang rightly points out that China's universities need high-quality faculty members if they are to be competitive internationally (Nature514, 295–296,10.1038/514295a2014). But there are risks in giving individual colleges and departments more autonomy in recruiting staff.

We agree with Jie Zhang that university reform is needed to improve the quality of Chinese research papers (Nature514, 295–296;10.1038/514295a2014). A home-grown scientist in China might then stand a chance of winning a Nobel prize for

The Rosetta spacecraft's Philae probe, which landed successfully on an orbiting comet on 12 November (see Naturehttp://doi.org/w8k; 2014), could be renamed Pheidippides — for its record-setting marathon run and transmission of its message before collapsing.

The field of materials science is working to broaden the range of people it attracts.

A distant memory.

People with the inherited bleeding disorder haemophilia lack factors that cause the blood to clot. The disease affects thousands of people around the world and has even played a part in historic events. By Neil Savage.

Repairing the faulty genes that cause haemophilia could ultimately cure the disease, but it will be a tough challenge.

Extending the life of clotting factors may improve quality of life for people with haemophilia.

History explains why people with haemophilia, and their physicians, are cautious to believe that a cure is in sight, says Stephen Pemberton.

Pills made from lettuce leaves could help to prevent one of the most serious complications of haemophilia treatment.

A promising therapy curtails clotting inhibitors rather than replacing proteins that promote blood clotting.

The hunt is on for ways to diagnose and treat the joint problems that are now the main chronic problem in haemophilia.

In the study of haemophilia, man really does have a best friend.

The Outlook article 'The search for the rice of the future' (Nature514, S60–S61;10.1038/514S60a2014) wrongly stated that a flood-resistant gene was bred into rice by Pamela Ronald. In fact, the breeding was done by David Mackill, Abdelbagi

A study of the El Niño phenomenon over the past 21,000 years suggests that El Niño responded in complex ways to a changing climate, with several competing factors playing a part in its varying strength. See Letter p.550

A newly discovered skull from the Cretaceous period belongs to a mammal that was big, strange and fast-moving. The fossil solves a long-standing mystery, and helps to resolve a controversy about mammalian evolution. See Article p.512

Five papers extend the list of cancers that respond to therapies that restore antitumour immunity by blocking the PD-1 pathway, and characterize those patients who respond best. See Letters p.558, p.563, p.568, p.572 & p.577

A geometric measurement of the distance to a nearby galaxy implies a larger mass for its central black hole than previously calculated, and a consequent increase for most other masses of such black holes. See Letter p.528

An analysis of fruit-fly embryos reveals that receptor proteins of the Toll family direct the oriented cell rearrangements required for the elongation of the head-to-tail axis during development. See Article p.523