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Your destination for news from pnas.org. See how pnas.org’s media bias impacts the breaking news stories of today.

We’ve aggregated 17 of pnas.org’s headlines and news stories over the past 3 months.

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pnas.org’s aggregated factuality score is Very High. Factuality is assigned by combining fact check, credibility, and reliability ratings from Ad Fontes Media and Media Bias/Fact Check.

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Top pnas.org News

Fire

Carbon record reveals evidence of extensive human fire use 50,000 years ago

67% Center coverage: 3 sources

Fire is an ancient natural phenomenon that has shaped our planet for more than 400 million years. It alters habitats, affects the carbon cycle, and is closely linked to changes in climate and vegetation.See the Story

Science

Most tree species face serious climate threat even under modest warming, study reveals

100% Center coverage: 2 sources

Trees are essential to life on Earth. They support ecosystems, store carbon, provide clean water, improve our health, and offer countless benefits to people and nature. In a new study, researchers modeled the future climate exposure (areas where trees will experience conditions they have never faced before) of more than 32,000 tree species worldwide. Published in Proceedings of the National Academy of Sciences, their findings reveal that many tr…See the Story

Technology

Scientists Uncover Exercise Lifehack: Go to Bed

100% Left coverage: 1 sources

New research has found that people who tuck into bed early tend to be more physically active the next day.See the Story

Human ancestors may not be responsible for Oldowan stone tools

Archaeology Read Article

Study finds planetary waves linked to wild summer weather have tripled since 1950

69% Center coverage: 52 sources

Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years and that may explain why long-range computer forecasts keep underestimating the surge in killer heat waves, droughts and floods, a new study says.Climate Change · United States See the Story

TIL People with social anxiety disorder have a different gut microbiome - transplanting their microbiome to mice causes the mice to suffer from increased social fear

Read Article

Microplastics from biodegradable material may be linked to diabetes, study finds

100% Center coverage: 1 sources

Polylactic acid – used in food packaging, disposable tableware and clothing – found to alter gut metabolism and harm gut barrier of mice.Diabetes · China See the Story

In much of the world, parents may coo at infants, but they rarely mime full conversations, often called “parentese.” And yet, studies show the benefits of conversation for infant development. Improving the practice in developing countries could start with

Science Read Article

Global wheat yields would be 10 per cent higher without climate change

Global yields of wheat are around 10 per cent lower now than they would have been without the influence of climate change, according to a new study.Climate Change See the Story

Some fish have the remarkable ability to navigate and locate prey in total darkness using nothing but electrical fields. Researchers recently made an artificial neural network to decode this “electric vision” in fish.

Fish Read Article

After the U.S. Supreme Court overturned the constitutional protection of abortion rights in 2022, Democratic candidates became significantly more likely to campaign on abortion and to do so using unambiguous language, while Republicans increasingly obfusc

Abortion · United States Read Article

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Top pnas.org News

Carbon record reveals evidence of extensive human fire use 50,000 years ago

Most tree species face serious climate threat even under modest warming, study reveals

Scientists Uncover Exercise Lifehack: Go to Bed

Human ancestors may not be responsible for Oldowan stone tools

Study finds planetary waves linked to wild summer weather have tripled since 1950

TIL People with social anxiety disorder have a different gut microbiome - transplanting their microbiome to mice causes the mice to suffer from increased social fear

Microplastics from biodegradable material may be linked to diabetes, study finds

In much of the world, parents may coo at infants, but they rarely mime full conversations, often called “parentese.” And yet, studies show the benefits of conversation for infant development. Improving the practice in developing countries could start with

Global wheat yields would be 10 per cent higher without climate change

Some fish have the remarkable ability to navigate and locate prey in total darkness using nothing but electrical fields. Researchers recently made an artificial neural network to decode this “electric vision” in fish.

After the U.S. Supreme Court overturned the constitutional protection of abortion rights in 2022, Democratic candidates became significantly more likely to campaign on abortion and to do so using unambiguous language, while Republicans increasingly obfusc

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