Science

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• Source limited to: The Conversation

 2021-04-23 03:24 

The Conversation AU

Spot the difference: As world leaders rose to the occasion at the Biden climate summit, Morrison faltered...

Prime Minister Scott Morrison overnight addressed a much anticipated virtual climate summit convened by US President Joe Biden, claiming future generations "will thank us not for what we have promised, but what we deliver". But what will his gover...

 2021-04-23 00:48 

The Conversation AU

Satellites reveal ocean currents are getting stronger, with potentially significant implications for climate change...

NASA/Goddard Space Flight Center Scientific Visualization Studio Scientists already know the oceans are rapidly warming and sea levels are rising. But that's not all. Now, thanks to satellite observations, we have three decades' worth of data on h...

 2021-04-22 21:40 

The Conversation

For Vladimir Putin and other autocrats, ruthlessly repressing the opposition is often a winning way to stay in power...

Police arrest a protester at a Moscow rally in support of Russian dissident Alexei Navalny, who fell ill while in prison and is now hospitalized. Alexander Demianchuk\TASS via Getty Images Alexei Navalny, Russia's most important opposition leader, is ...

 2021-04-22 20:13 

The Conversation AU

The years condemn: Australia is forgetting the sacred trees planted to remember our war dead...

Supplied On Anzac Day each year, Australians remember those who served and died in wars and conflicts. We may attend a dawn service, go to a march or lay a wreath at a war memorial. But across Australia lie living war commemorations you may pass every day...

 2021-04-22 20:13 

The Conversation AU

Australia's economy can withstand the proposed European Union carbon tariff — here's what we find...

Perutskyi Petro/Shutterstock The European Union has committed to very significant emission cuts — 55% on 1990 levels by 2030, and zero net emissions by 2050. To help it get there without too much disruption, the president of the European Commission ...

 2021-04-22 16:41 

The Conversation

New US climate pledge: Cut emissions 50% this decade, but can Biden make it happen?...

U.S. President Joe Biden, with presidential climate envoy John Kerry, opened the Leaders Summit on Climate April 22, 2021, by announcing new U.S. targets. AP Photo/Evan Vucci President Joe Biden announced an ambitious new national climate target at a live...

 2021-04-22 13:42 

The Conversation

The other George Floyd story: How media freedom led to conviction in his killer's trial...

Darnella Frazier is third from right, recording the murder of George Floyd by police officer Derek Chauvin on May 25, 2020. Minneapolis Police Department via AP When 17-year-old Darnella Frazier started recording video of Minneapolis policeman Derek Chauv...

 2021-04-22 12:27 

The Conversation

Why corporate America appears to be drifting away from the Republican Party...

Public protests over Georgia's voting law likely contributed to many companies' taking a strong stand. AP Photo/Jeff Amy There's a growing rift between corporate America and the GOP two groups that have long been bedfellows . The latest incide...

 2021-04-22 12:26 

The Conversation

Money alone can't fix Central America or stop migration to US...

Children play in Las Flores village, Comitancillo, Guatemala, home of a 22-year-old migrant murdered in January 2021 on his journey through Mexico. Johan Ordonez/AFP via Getty Images To stem migration from Central America, the Biden administration has a U...

 2021-04-22 12:25 

The Conversation

Labgrown embryos and humanmonkey hybrids: Medical marvels or ethical missteps?...

Researchers have grown mammal embryos later into development than ever before in an artificial womb. Vitalii Kyryk/WikimediaCommons , CC BY-SA In Aldous Huxley's 1932 novel " Brave New World ," people aren't born from a mother's womb. ...

 2021-04-22 12:25 

The Conversation

You don't have a male or female brain the more brains scientists study, the weaker the evidence for sex differences...

Brain sex isn't a thing. Sunny/Stone via Getty Images Everyone knows the difference between male and female brains. One is chatty and a little nervous, but never forgets and takes good care of others. The other is calmer, albeit more impulsive, but ca...

 2021-04-22 04:59 

The Conversation AU

'Self-driving' cars are still a long way off. Here are three reasons why...

Self-driving software will become a key differentiator for highly automated vehicles but the technology is not quite ready yet. Shutterstock The recent crash of a Tesla car in the United States, in which two people died, has reignited debate about the cap...

 2021-04-22 04:30 

The Conversation AU

Like a jackal in wolf's clothing: the Tasmanian tiger was no wolfish predator — it hunted small prey...

Author provided The thylacine ( Thylacinus cynocephalus ), commonly known as the Tasmanian tiger, is an Aussie icon. It was the largest historical marsupial predator and a powerful example of human-caused extinction. And despite being extinct since 1936 ,...

 2021-04-21 20:14 

The Conversation AU

Scott Morrison can't spin this one: Australia's climate pledges at this week's summit won't convince the world we're serious...

Bianca De Marchi/AAP Days out from a much-anticipated climate summit convened by US President Joe Biden, the federal government has moved to position itself as serious about emissions reduction. On Wednesday Prime Minister Scott Morrison pledged A$539 mil...

 2021-04-21 20:11 

The Conversation AU

If we want to improve NZ's freshwater quality, first we need to improve the quality of our democracy...

www.shutterstock.com Since the fatal Havelock North campylobacter outbreak in 2016, freshwater quality has rightfully been a major political issue in Aotearoa New Zealand. Pipes bursting in Wellington, lead contamination in Otago and concerns about tolera...

 2021-04-21 17:47 

The Conversation

Chauvin conviction: 2 things to know about jury bias and 2 ways to reduce it...

In Atlanta, Ga., one person's sign reflects the actual verdicts that had just been delivered in the Derek Chauvin trial. Megan Varner/Getty Images Shortly after the guilty verdicts were revealed in former police officer Derek Chauvin's trial for m...

 2021-04-21 12:29 

The Conversation

Vaccine mandates aren't the only or easiest way for employers to compel workers to get their shots...

Universities and other employers are encouraging workers to get vaccinated by doing it on site. AP Photo/Danny Karnik A workplace showdown may be brewing over mandating vaccinations. Employers would love the sense of certainty that comes with a vaccinated...

 2021-04-21 12:29 

The Conversation

Environmental DNA how a tool used to detect endangered wildlife ended up helping fight the COVID-19 pandemic...

Looking for bits of DNA at the University of Florida. David Duffy , CC BY-ND Imagine discovering an animal species you thought had gone extinct was still living without laying eyes on it. Such was the case with the Brazilian frog species Megaelosia bocain...

 2021-04-21 12:26 

The Conversation

Yes, online communities pose risks for young people, but they are also important sources of support...

Sometimes an anonymous online forum is just what a teenager needs. Capuski/E+ via Getty Images Aristotle called humans "the social animal," and people have recognized for centuries that young people need to be in communities to develop into health...

 2021-04-21 12:24 

The Conversation

Misinformation, disinformation and hoaxes: What's the difference?...

The flood of information can be overwhelming. Rudzhan Nagiev/iStock/Getty Images Plus Sorting through the vast amount of information created and shared online is challenging, even for the experts. Just talking about this ever-shifting landscape is confusi...

 2021-04-21 08:26 

The Conversation AU

Fat-footed tyrannosaur parents couldn't keep up with their skinnier offspring, fossil footprints reveal...

Artwork by Jos Vitor Silva. , Author provided Tyrannosaurus rex is perhaps the most famous of all dinosaurs. It and its closest kin, a group referred to as "tyrannosaurs4;, have been embedded in popular culture as powerful and mobile predators. Con...

 2021-04-21 04:31 

The Conversation AU

How the water and sewage under your feet could end up flooding your home (and what to do about it)...

cc-by-sa/2.0 - Sandy B - geograph.org.uk/p/3860155 , CC BY Recent flooding in the Sydney Basin pushed thousands from their homes and left others facing enormous insurance costs. These events show how traumatic and costly it can be to live in areas vulnera...

 2021-04-20 23:30 

The Conversation

Why this trial was different: Experts react to guilty verdict for Derek Chauvin...

A woman reacts to the news that Derek Chauvin was found guilty on all three counts in the murder of George Floyd. Scott Olson/Getty Images Scholars analyze the guilty verdicts handed down to former Minneapolis police officer Derek Chauvin in the 2020 murd...

 2021-04-20 20:09 

The Conversation AU

Tiny Game of Thrones: the workers of yellow crazy ants can act like lazy wannabe queens. So we watched them fight...

Wes Mountain/The Conversation , CC BY-ND The invasive ant world is a competitive one, rife with territorial battles and colony raids. And yellow crazy ants ( Anoplolepis gracilipes ), one of the world's worst invasive species , have an especially inte...

 2021-04-20 12:30 

The Conversation

Hydrogen is one future fuel oil execs and environmentalists could both support as rival countries search for climate solutions...

Many oil companies are still planning for fossil fuel use to continue well into the future. Katja Buchholz/Getty Images Tehran, 1943: Joseph Stalin, Franklin D. Roosevelt and Winston Churchill hosted by the young Shah Reza Pahlavi agree on plans for the t...

 2021-04-20 12:29 

The Conversation

The US electric power sector is halfway to zero carbon emissions...

Wind turbines near Glenrock, Wyo. AP Photo/Matt Young CC BY-ND Renewable energy's rapid growth is accelerating a national shift to a carbon-free electric power system. So far 17 states plus Washington, D.C., and Puerto Rico have adopted laws or execut...

 2021-04-20 12:28 

The Conversation

No visits and barely any calls pandemic makes separation even scarier for people with a family member in prison...

A Texas woman shows a picture of her 21-year-old son, who has been incarcerated during the pandemic. AP Photo/LM Otero Jails and prisons in the United States had a coronavirus infection rate three times greater than the general population , with an averag...

 2021-04-20 12:28 

The Conversation

Domestic violence calls for help increased during the pandemic but the answers haven't gotten any easier...

Two women in late February at a Paterson, N.J. shelter for women who have suffered domestic violence. Kena Betancur/AFP/Getty Images Domestic violence rose globally in 2020 so much so that doctors have called it " a pandemic within a pandemic ." T...

 2021-04-20 12:27 

The Conversation

Student loan debt is costing recent grads much more than just money...

Recent college graduates owed an average of nearly $30,000 in student loans in 2019. lightspeedshutter/iStock via Getty Images Plus President Joe Biden promised to forgive up to US$10,000 in student loan debt during his 2020 campaign. Now, a few months in...

 2021-04-20 12:26 

The Conversation

An advantage of the government's new payments for families: Not humiliating poor people...

Nearly all U.S. families with children will benefit. Tara Moore/Stone via Getty Images The US$1.9 trillion coronavirus relief package President Joe Biden signed in March 2021 will expand the child tax credit for one year. Instead of providing families wit...

 2021-04-20 05:00 

The Conversation AU

So a helicopter flew on Mars for the first time. A space physicist explains why that's such a big deal...

Yesterday at 9pm Australian Eastern standard time, the Ingenuity helicopter — which landed on Mars with the Perseverance rover in February — took off from the Martian surface. More importantly, it hovered for about 30 seconds, three metres abo...

 2021-04-20 04:54 

The Conversation AU

Climate explained: what was the Medieval warm period?...

As this reconstructed village shows, Vikings made it as far as Newfoundland during the Medieval warm period. Wikimedia/Dylan Kereluk , CC BY-SA CC BY-ND Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media...

 2021-04-19 22:57 

The Conversation AU

NZ's next large Alpine Fault quake is likely coming sooner than we thought, study shows...

NASA/JPL/NGA , CC BY-ND The Alpine Fault marks the boundary between the Pacific and Australian plates in the South Island of New Zealand. Author provided The chances of New Zealand's Alpine Fault rupturing in a damaging earthquake in the next 50 years...

 2021-04-19 21:27 

The Conversation

What's next for Cuba and the United States after Raul Castro's retirement...

With Raul Castro's resignation as first secretary of the Communist Party, the Castro era is officially over in Cuba. Yamil Lage/AFP via Getty Images Cuba's Castro dynasty has officially ended. On April 16, 2021, Raul Castro younger brother of long...

 2021-04-19 20:13 

The Conversation AU

Bridges, highways, scaffolds: how the amazing engineering of army ants can make us smarter creators...

Chris R Reid , Author provided Army ants ( Eciton burchellii ) are known for their vast foraging raids. Hundreds of thousands of ants flow like a river from their nest site, scouring the jungle as they prey on anything unable to escape the swarm. These ra...

 2021-04-19 20:13 

The Conversation AU

Looking at the stars, or falling by the wayside? How astronomy is failing female scientists...

It will take until at least 2080 before women make up just one-third of Australia's professional astronomers, unless there is a significant boost to how we nurture female researchers' careers. Over the past decade, astronomy has been rightly recog...

 2021-04-19 20:10 

The Conversation AU

Rainforest giants with rare autumn displays: there's a lot more to Australia's red cedar than timber...

Peter Woodard/Wikimedia Native deciduous trees are rare in Australia, which means many of the red, yellow and brown leaves we associate with autumn come from introduced species, such as maples, oaks and elms. One native tree, however, stands out for its l...

 2021-04-19 12:28 

The Conversation

Interstate water wars are heating up along with the climate...

Aerial view of Lake Powell on the Colorado River along the Arizona-Utah border. AP Photo/John Antczak Interstate water disputes are as American as apple pie. States often think a neighboring state is using more than its fair share from a river, lake or aq...

 2021-04-19 12:28 

The Conversation

Democratic bill attempts to undo voter restrictions of past 15 years...

Speaker of the House Nancy Pelosi, D-Calif., and fellow Democrats address reporters on H.R. 1 at the Capitol in Washington on March 3, 2021. J. Scott Applewhite/AP Photos The recent national elections — conducted in the middle of the COVID-19 pandem...

 2021-04-19 12:27 

The Conversation

Has any US president ever served more than eight years?...

Franklin Delano Roosevelt, standing at center and facing left just above the eagle, takes the presidential oath of office for the third time in 1941. FDR Presidential Library and Museum via Flickr , CC BY Curious Kids is a series for children of all ages....

 2021-04-19 12:27 

The Conversation

Competition heats up in the melting Arctic, and the US isn't prepared to counter Russia...

Russia has been beefing up its Arctic icebreaker fleet to take advantage of the climate changes. Lev Fedoseyev\TASS via Getty Images For decades, the frozen Arctic was little more than a footnote in global economic competition, but that's changing as ...

 2021-04-19 12:27 

The Conversation

Brazil's economic crisis, prolonged by COVID-19, poses an enormous challenge to the Amazon...

A deforested piece of land in the Amazon rainforest near Porto Velho, in the state of Rondonia, in northern Brazil, on Aug. 23, 2019. Carl De SouzaA/FP via Getty Images Brazilian President Jair Bolsonaro confirmed his country's participation in a virt...

 2021-04-19 12:26 

The Conversation

No, vaccine side effects don't tell you how well your immune system will protect you from COVID-19...

It's not a bad sign if you feel fine after your COVID-19 shot. Luis Alvarez/DigitalVision via Getty Images If someone gets a headache or feels a bit under the weather after receiving a COVID-19 vaccine, it's become common to hear them say somethin...

 2021-04-19 06:10 

The Conversation AU

A US ban on kangaroo leather would be an animal welfare disaster and a missed farming opportunity...

Shutterstock The US Congress is considering a proposed law to ban the import and sale of kangaroo parts. Backed by a campaign called Kangaroos Are Not Shoes, the bill is aimed at stopping Nike, Adidas and other big brands from using kangaroo leather in th...

 2021-04-19 05:59 

The Conversation AU

ACCC 'world first': Australia's Federal Court found Google misled users about personal location data...

Henry Perks / Unsplash The Federal Court has found Google misled some users about personal location data collected through Android devices for two years, from January 2017 to December 2018. The Australian Competition & Consumer Commission (ACCC) says this...

 2021-04-19 05:19 

The Conversation AU

Privacy erosion by design: why the Federal Court should throw the book at Google over location data tracking...

Shutterstock The Australian Competition and Consumer Commission has had a significant win against Google. The Federal Court found Google misled some Android users about how to disable personal location tracking . Will this decision actually change the beh...

 2021-04-19 01:51 

The Conversation AU

As scientists move closer to making part human, part animal organisms, what are the concerns?...

Shutterstock The recent announcement that scientists have made human-monkey embryos and cultured them in the lab for two weeks made international headlines. The technology to make animals that contain cells from other species has been available for decade...

 2021-04-18 20:08 

The Conversation AU

Online exam monitoring is now common in Australian universities — but is it here to stay?...

COVID-19 lockdowns were a huge disruption for Australian universities. With students unable to come to campus, many universities turned to "online proctoring solutions" to monitor students during exam time. Many of these systems rely on automated ...

 2021-04-18 20:08 

The Conversation AU

Attack of the alien invaders: pest plants and animals leave a frightening $1.7 trillion bill...

Shutterstock They're one of the most damaging environmental forces on Earth. They've colonised pretty much every place humans have set foot on the planet. Yet you might not even know they exist. We're talking about alien species. Not little gr...

 2021-04-18 12:32 

The Conversation

Being skeptical of sources is a journalist's job but it doesn't always happen when those sources are the police...

Police body camera video shows Adam Toledo's hands were raised just before he was shot. Chicago Police Department via AP The death of 13-year-old Adam Toledo might well have made international headlines on March 29, 2021 the day he was shot and killed...

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