Category: ScienceNews

Whales are more than just beautiful creatures — they play a vital role in the ocean's ecosystem. Today, Asha de Vos, marine biologist and pioneer of long-term blue whale research within the Northern Indian Ocean, explains why protecting whales is crucial for protecting the entire sea in this excerpt of TED Radio Hour.

Listen to the full episode, An SOS From The Ocean, here.

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There is inequality in the United States, a fact most people accept and which data certainly bears out. But how bad do you think that inequality is, say, based on comparing the wealth held by the average Black person in America and the average white person? This is one of the questions that Jennifer Richeson, a social psychologist at Yale University, studies. She has news -- bad news -- about both the actual gap and what people across the board think that gap is.

First off, the facts. The Black-white wealth gap in the United States is, in Richeson’s words, “staggeringly large.” Citing figures from 2016, she notes that “the average Black family had about 10 percent of the wealth of the average white family.” The actual percentage in wealth improved slightly in the five years since, “but the important thing is that it’s a huge, staggering gap that has been persistent for 50 to 60 years.”

With the gap so large and so persistent, you might expect estimates of its size to reflect reality. You would be mistaken, as Richeson tells interviewer David Edmonds in this Social Science Bites podcast. “If you ask the average American on any given day, they will probably say the wealth gap is around 65, 70 percent. … That’s not only wrong, it’s very wrong compared to the actual wealth gap. … Part of the reason we’re so wrong is because we really believe that since the 50s, 60s, 70s, 80s, things have gotten dramatically better and are continuing to get better.”

The perception is that roughly since the Civil Rights era the gap narrowed from about half to near parity. Respondents to these sorts of questions “feel compelled to conform to this narrative of racial progress” in their estimates, a narrative that Richeson has likened to a mythology.

“No, things are not fine – they are similarly bad as they were in the 60s. That’s true for the wealth gap, that’s true for the wage gap. Income is slightly better, but not much. It’s a persistent and pervasive staggering inequality that’s stubborn, and our psychology refuses to believe that.”

Visions of this delusional economic advancement are shared broadly across the nation’s economic and ethnic strata; “Black Americans,” Richeson says, “are more accurate but still really wrong.” Her research has found that the more you believe in a just world, the more your estimate will underestimate the gap. This suggests in part why Black Americans – with daily experiences of structural inequality – give estimates that are at least a little closer to the mark. “One reason we believe there is this gap between Black Americans and white Americans is because of the differential tendency to believe that outcomes are fair and only determined by your individual effort, talent, hard work.”

This massive misperception matters. While “being this wrong about anything is interesting” academically, Richeson says, the magnitude of this misperception affects individual and societal wellbeing; it also undermines the idea behind the so-called American dream, that American society is a meritocracy. American cannot, she says, “just know the truth and do nothing about it.”

Richeson, the Philip R. Allen Professor of Psychology at Yale, received the SAGE-CASBS Award in 2020 for her work and will deliver a COVID-delayed lecture at the Center for Advanced Study in the Behavioral Sciences at Stanford University later this year. That was one of a number of honors she has accumulated, including a 2007 John D. & Catherine T. MacArthur Foundation Fellowship (known as the “genius award”), a John Simon Guggenheim Memorial Foundation Fellowship (2015), the Mamie Phipps Clark and Kenneth B. Clark Distinguished Lecture Award from Columbia University (2019), the Career Trajectory Award from the Society of Experimental Social Psychology (2019), and a Carnegie Foundation Senior Fellowship (2020).

Caregivers in the "Sandwich Generation" have reported a steep decline in mental health, as did others who had to juggle changes in the amount of caregiving they had to provide to loved ones. Caregivers have struggled with anxiety, depression and PTSD at rates much higher than those without caregiving roles. NPR correspondent Rhitu Chatterjee talks about the study and her reporting with Emily Kwong.

If you or anyone you know is struggling, help is available. Call the National Suicide Prevention Lifeline at 1-800-273-8255. You can also check out this previous episode, 'How To Reach Out When Someone You Know May Be At Risk Of Suicide.'

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Reduce, Reuse, Recycle. It’s a well-known phrase that we all try and follow in our day to day lives. But are our current recycling habits the best they can be? It’s a hot topic at Crowdscience - multiple listeners have contacted Crowdscience with questions about the ins and outs of recycling.

We follow one listener’s food waste to a processing plant to investigate whether or not it could be processed in our own homes. But aside from the food waste, what about the containers it comes in? We investigate if food containers really need to be cleaned before we put them in recycling bins, or if that just wastes water.

Recycling processes differ all over the world, so we hear from reporter Chhavi Sachdev in Mumbai, India, who follows her plastic waste to find out how plastic sorting and recycling is a whole economy of its own.

But new technologies have meant that biodegradable and bioderived plastics are starting to appear in our packaging, and one Crowdscience listener wants to know which is better for the environment – traditional plastic that has been recycled, or bioplastic and compostable alternatives? And looking to the future, could we ever recycle our plastic waste at home and use 3D printers to make useful things out of our own waste?

Marnie Chesterton delves into these questions with Circular Economy Project Manager Dr Rhiannon Hunt of Manchester Metropolitan University, to discover the details of recycling and unearth how we can make our own recycling as efficient as possible.

With Dave Atkins, reporter Chhavi Sachdev and Dr Rhiannon Hunt.

Presented by Marnie Chesterton and Produced by Hannah Fisher for the BBC World Service.

[Image credit; Getty Images]

There are thousands of species of lightning bug and they live all over the world except in Antarctica. Maddie and Emily discuss lots of other amazing tidbits about the family Lampyridae and talk about what humans can do to preserve the bugs, which are facing widespread habitat disruption.

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Do rocks found in Canada show animal life 350 million years older than any found before? And, delving to the core of Mars, the guts of cats, and into the life of Steven Weinberg.

Prof Elizabeth Turner of Canada's Laurentian University reports in the journal Nature structures in some of the oldest sedimentary rocks that resemble the residue left by sponges such as the sort you might find in a bath. 350 million years older than the oldest such fossils yet identified, if they are left by such animals, they represent a complex life that existed some 90 million years before - it has been supposed - there was even enough oxygen to support such development. As she tells us, rather like previous geologists investigating the deep history of life, Elizabeth has been sitting on this idea since she was a young researcher.

Since 2019 NASA's InSight probe has been on the surface of Mars listening for seismic waves from below to try to form a picture of the planet's internal structure. Last week in the journal Science, three papers presented data and analysis and some surprises for planetary scientists trying to work out how a planet that began almost, but not quite, so similar to earth could have turned out so different today. Cambridge University's Dr Sanna Cottaar gives us her take on the exciting findings.

Most of our understanding of genetics – diseases and heritability – is derived from decades of deep studies into just a few model species besides humans. But Prof Lesley Lyons runs a lab at the University of Missouri focusing almost entirely on cats. She describes to Roland a proclamation she makes this week to her fellow scientists to do more work into cat genetics and how, because of the similarities between cats and human genomes, that will bring all sorts of benefits to human (and cat) health.

Earlier this week we heard of the death of physicist Steven Weinberg - one of the giants of 20th century particle physics and cosmology. Roland presents recordings and reminiscences of a remarkable scientist who provided so much insight into the first 3 minutes of our universe's existence...

Image: Field locations in Northwest Territories, Canada Credit: Elizabeth Turner, Laurentian University

Presenter: Roland Pease Producer: Alex Mansfield

On Tuesday, the Centers for Disease Control and Prevention changed its guidance on wearing masks. Short Wave co-host Maddie Sofia and NPR health correspondent Allison Aubrey explain what's changed and why. Plus, the latest on the Delta variant, a highly transmissible strain of the coronavirus.

Want to see how widespread COVID-19 is in your local community? Check out this data tracker from NPR.

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Fire has always been part of California's landscape. But long before the vast blazes of recent years, Native American tribes held controlled burns that cleared out underbrush, encouraged new plant growth, and helped manage wildfires. It's a tradition that disappeared with the arrival of Western settlers. NPR climate correspondent Lauren Sommer explains how tribal leaders are trying to restore the practice by partnering up with state officials who are starting to see cultural burns as a way to help bring extreme wildfires under control. (Encore episode)

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Sweating is critical to helping humans avoid overheating, and it's different than how most animals cool down. Sarah Everts wanted to understand more about how humans came to sweat like we do, and wrote a book called The Joy of Sweat - which she talked about with Rhitu for this episode.

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It's a listener questions episode! Chuck, Short Wave fan, asks, "What is the current state of earthquake prediction systems?"

For some answers, Emily Kwong chats with Wendy Bohon, a geologist and Senior Science Communication Specialist for the Incorporated Research Institutions for Seismology (IRIS).

To look at real-time seismic data from hundreds of locations around the globe, check out the IRIS Station Monitor.

Have a question you want us to try answering? Email us at shortwave@npr.org.

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