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UN's climate change executive secretary Simon Stiell speaks during the closing session of UN climate summit COP27.

United Nations climate change executive secretary Simon Stiell speaks during the closing session of COP27.Credit: Mohamed Abdel Hamid/Anadolu Agency/Getty

COP27 frustration — but a silver lining

The 27th United Nations climate conference (COP27) ended on Sunday morning with researchers largely frustrated by the lack of ambition to turn away ful-ly from fossil fuels.

• The energy crisis sparked by Russia’s invasion of Ukraine loomed large, leading European countries to vacillate on promises to quash investment in fossil fuels.

• New wording was added to the final agreement calling for accelerated development of “low-emission” energy systems, which many fear will be used to justify further natural-gas development.

The silver lining: delegates from low- and middle-income countries came away with an agreement on a new ‘loss and damage’ fund to help them cover the costs of climate-change impacts.

• The European Union proved central when it pivoted to support the fund, putting pressure on the United States, which has long opposed anything that might leave it financially liable for its enormous historical emissions.

• In a first for a climate COP, the final text backs reform of giant lenders such as the International Monetary Fund and the World Bank, which are lynchpins of the global economy.

The COP27 deal also says that “safeguarding food security and ending hunger” is a fundamental priority. “There is real progress in terms of words,” says agricultural economist Joachim von Braun.

Nature | 6 min read


As COP27’s Friday deadline turned into Sunday morning and workers dismantled the conference pavilions around them, negotiators pushed themselves to the limit to achieve a flawed but historic agreement. “We got there,” said an ecstatic Saleemul Huq, the director of the International Center for Climate Change and Development in Bangladesh.

The huge event often felt like a cynical cross between a circus and a trade show. But the actual negotiations — at least those not behind closed doors — for the most part came across as heartfelt, determined and gruelling for the delegates involved.

Outside the negotiating rooms, the conference was already being wiped off the map. The hundreds of free, lusciously painted electric and natural-gas buses that had plied the resort town’s roads vanished overnight. It was a visible reminder that good intentions can evaporate all too quickly.

For the first time, a mention of “tipping points” was included in the final text. These are abrupt and irreversible shifts in the Earth system — such as the loss of the Amazon rainforest or the West Antarctic ice sheet — that could have cascading negative effects on the planet’s habitability. How much COP27’s muted achievements will tip the scales towards a better future remains to be seen. British–Egyptian pro-democracy activist Alaa Abdel Fattah, whose hunger strike focused a spotlight on human rights in Egypt during the conference, remains in prison — though alive. And so, on many fronts, the work continues.

Flora Graham, Senior Editor, Nature Briefing

NASA won’t rename Webb telescope

NASA reconfirmed that it will not rename its James Webb Space Telescope, after a report by its chief historian found no evidence explicitly linking its former director with anti-LGBT+ actions. The decision rankles with those astronomers who questioned the decision to name the iconic telescope after someone who held high-ranking government positions at a time when the United States systematically fired employees for their sexual orientation. “It is hypocritical of NASA to insist on giving Webb credit for the exciting things that happened under his leadership — activities that were actually conducted by other people — but refuse to accept his culpability for the problems,” say the four astronomers who last year launched a petition to rename the telescope. The controversy has prompted lasting change: in future, NASA will convene a committee that includes a historian, and conduct “a thorough historical and legal review” before choosing names.

Nature | 6 min read

World votes to ditch leap seconds

Metrologists have agreed to stop adding ‘leap seconds’ to official clocks to keep them in sync with variations in Earth’s rotation. Leap seconds can disrupt systems based on precise timekeeping, because there’s no set way to integrate them (Google, for example, smears out the extra second in the 24 hours around midnight at coordinated universal time). To make matters worse, Earth’s rotation has sped up since 2020 — normally, over the long term, Earth’s rotation slows because of the pull of the Moon. So, for the first time, a leap second might need to be removed rather than added. The practice of adding leap seconds will be put on hold from 2035.

Nature | 5 min read

Science spared from UK budget chaos

Researchers in the United Kingdom are breathing a sigh of relief after their funding survived the country’s recent budget update. The latest finance minister, Jeremy Hunt — the country has had a revolving door of leaders and Cabinet members since the resignation of Boris Johnson in July — told Parliament that he would protect the entire UK research budget, because cutting it would be a “profound mistake”.It’s still not clear who the UK science minister is, with two people seemingly tipped separately for the role. In October, the government announced that parliamentarian Nusrat Ghani, who has limited experience in research, would fill the post, which had at that point been vacant for three months. But Prime Minister Rishi Sunak has apparently also reappointed former biotechnology investor George Freeman, who held the job previously but quit to help force Johnson’s resignation.

Nature | 4 min read

Features & opinion

How footballers can cope with Qatar heat

There are concerns about how the heat will affect players during the FIFA men’s World Cup in Qatar — although some fans said it was “too cold” in the open-air, air-conditioned stadium during the opening match on Sunday. Sportspeople can prepare their bodies for hot weather, if they have enough time. Researchers who readied athletes for the sweltering 2020 Olympic Games in Tokyo say that training in artificially hot temperatures for 10–14 days can be enough to become fully acclimatized. Researchers are also experimenting with how to detect when an athlete is too hot — and how to cool them to safe levels.

Nature | 4 min read

How to protect your ideas as a junior scientist

Social scientist Ijeoma Opara learnt some hard lessons after seeing a multimillion-dollar grant awarded to someone else, for aims that looked almost identical to her own ideas. She shares her advice to minimize the risk of being scooped.

Nature | 8 min read

Podcast: Moving labs, moving countries

In the third episode of this six-part Working Scientist podcast series about moving labs, three researchers who moved abroad for work describe how they handled the challenges it brought, including language barriers, cultural differences and experiences of racism.

Nature Careers Working Scientist Podcast | 26 min listen

Image of the week

Orion snapped this high-resolution selfie in space with a camera mounted on its solar array wing.

The Orion space capsule hitching a ride on NASA’s SLS rocket — a combo known by the mission moniker Artemis I — has snapped this selfie on its way to journey around the Moon. “Each of Orion’s four solar array wings has a commercial off-the-shelf camera mounted at the tip that has been highly modified for use in space” says David Melendrez, imagery integration lead for the Orion Program at NASA. (Credit: NASA)

Quote of the day

“The myth of the meritocracy, that productivity is tied to some sort of inherent characteristics about a person, doesn’t really seem to be supported by the data.”

Computer scientist Aaron Clauset and his colleagues found that having more paid junior researchers and larger research groups drives greater productivity at the most prestigious institutions. (Nature | 4 min read)