Monday, December 10, 2018
facebook

google plus


Arctic sea ice decline slows down temporarily: NASA
Photo: Thinkstock

Arctic sea ice decline slows down temporarily: NASA

09 Dec 2018 | 4:32 PM

WASHINGTON: The decline of the Arctic sea ice cover may have temporarily slowed down, despite climate change and global warming, a NASA study has found.

[ + read story ]

Washington

The decline of the Arctic sea ice cover may have temporarily slowed down, despite climate change and global warming, a NASA study has found.

As temperatures in the Arctic have warmed at double the pace of the rest of the planet, the expanse of frozen seawater that blankets the Arctic Ocean and neighbouring seas has shrunk and thinned over the past three decades.

The end-of-summer Arctic sea ice extent has almost halved since the early 1980s.

A recent NASA study found that since 1958, the Arctic sea ice cover has lost on average around two-thirds of its thickness and now 70 per cent of the sea ice cap is made of seasonal ice, or ice that forms and melts within a single year.

However, at the same time that sea ice is vanishing quicker than it has ever been observed in the satellite record, it is also thickening at a faster rate during winter.

This increase in growth rate might last for decades, a new study accepted for publication in Geophysical Research Letters found.

This does not mean that the ice cover is recovering, though. It’s just delaying its demise, researchers said.

"This increase in the amount of sea ice growing in winter doesn't overcome the large increase in melting we've observed in recent decades," said Alek Petty, a sea ice scientist at NASA's Goddard Space Flight Center in the US.

"Overall, thickness is decreasing. Arctic sea ice is still very much in decline across all seasons and is projected to continue its decline over the coming decades," said Petty.

Researchers used climate models and observations of sea ice thickness from the European Space Agency's CryoSat-2 satellite to explore sea ice growth variability across the Arctic.

The climate model results compared well both with CryoSat-2's measurements and the results of another commonly used Arctic sea ice model, giving the researchers confidence in the climate model's ability to capture Arctic sea ice variability.

"The global climate model seems to do a good job of capturing the Arctic sea ice state and shows that most of the thickness change in the central Arctic is from thermodynamics, that is, ice formation and ice melt, although around the Arctic sea ice edge dynamics, which is ice transport, can play a bigger role," Petty said.

These model simulations showed that in the 1980s, when Arctic sea ice was on average 6.6 feet thick in October, about 3.3 extra feet of ice would form over the winter.

That rate of growth has increased and may continue to do so for several more decades in some regions of the Arctic; in the coming decades, we could have an ice pack that would on average be only around 3.3 feet thick in October, but could experience up to 5 feet of ice growth over the winter. PTI

Human brain responds to aggressive voices more quickly

Human brain responds to aggressive voices more quickly

09 Dec 2018 | 12:58 PM

LONDON: Human brains notice a voice much faster when it is considered threatening or aggressive than when it is perceived as normal or happy in an auditory environment, according to a new study.

Buy Apple's first Beddit sleep tracker for $150

Buy Apple's first Beddit sleep tracker for $150

09 Dec 2018 | 12:54 PM

SAN FRANCISCO: Apple has released its new Beddit 3.5 sleep monitor for $150, the first since the tech giant bought the company in 2017.

Google announces 'Journalism AI' project

Google announces 'Journalism AI' project

08 Dec 2018 | 2:45 PM

LONDON: To help news industry use Artificial Intelligence (AI) in more innovative ways, Google has announced a partnership with Polis, the international journalism think-tank at London School of Economics and Political Science, to create "Journalism AI".

Parrot genome reveals insights into longevity, cognition

Parrot genome reveals insights into longevity, cognition

08 Dec 2018 | 1:08 PM

WASHINGTON: Scientists have sequenced the genome of the blue-fronted Amazon parrot, unveiling new insights into longevity and highly-developed cognitive abilities that give the talkative birds so much in common with humans.

Long-lasting ‘rewritable’ paper developed

Long-lasting ‘rewritable’ paper developed

08 Dec 2018 | 1:04 PM

BEIJING: Scientists have developed an easy-to-make “rewritable” paper that can be drawn or printed on over and over again.

Rice plants may help clean wastewater from farms

Rice plants may help clean wastewater from farms

08 Dec 2018 | 12:59 PM

WASHINGTON: Rice plants can be used to clean water draining from farms—which contain pesticides—before it gets into rivers, lakes, and streams, scientists suggest.

NASA’s InSight lander ‘hears’ wind on Mars

NASA’s InSight lander ‘hears’ wind on Mars

08 Dec 2018 | 11:49 AM

TEMPA: Humans can now hear the haunting, low rumble of wind on Mars for the first time, after NASA’s InSight lander captured vibrations from the breeze on the Red Planet, the US space agency said on Friday.

'Sun in a box' system to store renewable energy

'Sun in a box' system to store renewable energy

07 Dec 2018 | 5:26 PM

BOSTON: MIT scientists have designed a system that could store renewable energy, such as solar and wind power, and deliver it back into an electric grid on demand.

NASA's Mars InSight lander flexes its robotic arm

NASA's Mars InSight lander flexes its robotic arm

07 Dec 2018 | 4:40 PM

WASHINGTON: Latest images from NASA's Mars InSight lander—which successfully touched down on the Red Planet last week—show its robotic arm is ready to do some lifting, the US space agency said.

Google starts rolling out gender specific translation to reduce bias

Google starts rolling out gender specific translation to reduce bias

07 Dec 2018 | 2:26 PM

SAN FRANCISCO: In a bid to reduce gender biases in its translation service, Google has started rolling out a feature that provides feminine and masculine translations for some gender-neutral words on the Google Translate website.

AI-driven audio news feed comes to Google Assistant

AI-driven audio news feed comes to Google Assistant

07 Dec 2018 | 11:09 AM

SAN FRANCISCO: Google has partnered with some of the top news organisations and publishers to let people listen to curated, customised and long-form news stories via its Google Assistant-enabled smart home speakers.

Nobel laureates: Despite progress, cancer won't be wiped out

Nobel laureates: Despite progress, cancer won't be wiped out

06 Dec 2018 | 9:37 PM

STOCKHOLM: The winners of this year's Nobel Prize for Medicine say they expect substantial advances toward treating cancer in the next several decades although they say it's unlikely the disease could be eradicated.

Google releases Chrome 71, takes aim at deceptive websites

Google releases Chrome 71, takes aim at deceptive websites

06 Dec 2018 | 4:51 PM

SAN FRANCISCO: Google has announced its newly-released Chrome 71, the latest version of its web browser, is now rolling out for Windows, Mac and Linux operating systems (OS), which aims to keep deceptive websites off.

Smallest wearable, battery-free device developed

06 Dec 2018 | 3:35 PM

WASHINGTON: Scientists have developed the world's smallest wearable, battery-free device that can measure exposure to light across multiple wavelengths, from the ultra violet (UV), to visible and even infrared parts of the solar spectrum.

Novel smartphone app can detect anaemia without blood test

Novel smartphone app can detect anaemia without blood test

06 Dec 2018 | 3:07 PM

NEW YORK: Biomedical engineers have developed a novel smartphone application that could non-invasively detect anaemia without the need for a blood test.

The $3 bn map: Scientists pool oceans of data to plot Earth’s final frontier

The $3 bn map: Scientists pool oceans of data to plot Earth’s final frontier

06 Dec 2018 | 12:46 PM

LONDON: For experts in the field of ocean mapping it is no small irony that we know more about the surfaces of the Moon and Mars than we do about our planet’s sea floor.

Extinction warning for Australia's truffle-eating 'rat-kangaroo'

Extinction warning for Australia's truffle-eating 'rat-kangaroo'

06 Dec 2018 | 12:52 PM

SYDNEY: A truffle-eating Australian marsupial known as the rat kangaroo has suffered a dramatic population decline and could become extinct without urgent action to save the species, a report warned on Thursday.

New graphene-based sensor could boost food safety

New graphene-based sensor could boost food safety

05 Dec 2018 | 12:24 PM

BEIJING: Scientists have designed a graphene-based sensor that could make it easier to detect pathogens in products before they hit the supermarket, thus preventing dangerous illnesses from contaminated food.

Why people feel urge to squeeze cute puppies, babies

Why people feel urge to squeeze cute puppies, babies

05 Dec 2018 | 12:13 PM

LOS ANGELES: Scientists have analysed brain activity to better understand why people experience 'cute aggression' —the urge to squeeze a puppy or pinch a baby's cheeks.

Wild yeasts may hold key to better wines: Study

Wild yeasts may hold key to better wines: Study

04 Dec 2018 | 10:11 PM

MELBOURNE: Yeasts that naturally occur on wine grapes may improve wines produced in warmer climates, according to a study.

Humour replaces bickering as married couples age

Humour replaces bickering as married couples age

04 Dec 2018 | 2:57 PM

LOS ANGELES: Prickly disagreements that can mark the early and middle years of a marriage mellow with age as conflicts give way to humour and acceptance, according to a study.

Apple launches online store with discounts for veterans

Apple launches online store with discounts for veterans

04 Dec 2018 | 12:45 PM

SAN FRANCISCO: Apple has launched a dedicated online store for military veterans, personnel and their immediate families, with deep discounts.

Google brings eSIM to Pixel 3 in India with Jio, Airtel

Google brings eSIM to Pixel 3 in India with Jio, Airtel

04 Dec 2018 | 9:27 AM

NEW DELHI: Google on Tuesday announced eSIM wireless service on its Pixel 3 smartphone with Reliance Jio and Airtel telecom carriers in India.

Google starts rolling out 'Call Screen' feature for Pixel smartphones

Google starts rolling out 'Call Screen' feature for Pixel smartphones

02 Dec 2018 | 3:12 PM

SAN FRANCISCO: Google has started rolling out a feature for its Pixel smartphones that lets users make use of the Google Assistant to see who is calling and why before they answer a call.

NASA rocket to image Earth's leaky atmosphere

NASA rocket to image Earth's leaky atmosphere

02 Dec 2018 | 11:35 AM

WASHINGTON: NASA is set to launch a sounding rocket to get a closer look at the how the Earth's atmosphere is slowly leaking into space.

Amazon Echo to start streaming Apple Music soon

Amazon Echo to start streaming Apple Music soon

01 Dec 2018 | 5:19 PM

SAN FRANCISCO: Amazon's Echo smart speakers would work with Apple Music beginning December 17, the company has announced.

Google to retire Hangouts by 2020

Google to retire Hangouts by 2020

01 Dec 2018 | 3:18 PM

SAN FRANCISCO: Google will shut its popular Hangouts service for consumers by 2020, 9to5Google has reported, citing sources aware of the product's roadmap.

AI system can identify wild animals from photographs

AI system can identify wild animals from photographs

01 Dec 2018 | 1:42 PM

WASHINGTON: Scientists have developed an artificial intelligence system that can identify images of wild animals from camera-trap photographs, and could help make study and conservation of wildlife easier.

Now, share Instagram Stories with close friends

Now, share Instagram Stories with close friends

30 Nov 2018 | 4:59 PM

NEW DELHI: Popular photo-sharing platform Instagram on Friday announced its users can now make a "close friends" list on its "Stories" to share it with the people they've selectively added.

Phasing out coal power would benefit Indian consumers, taxpayers

Phasing out coal power would benefit Indian consumers, taxpayers

30 Nov 2018 | 12:33 PM

NEW DELHI: Renewable source of energy can provide more power in much less cost than new coal-powered power plants in India, and it costs more to run 62 per cent of the country's coal capacity than to build new renewable power generation facilities, according to a new study.

Blue whales worldwide singing little flat

Blue whales worldwide singing little flat

29 Nov 2018 | 4:34 PM

MELBOURNE: Blue whales around the world are singing a little flat, according to a study which found that increase in their population and climate change may be to blame.

Global warming will increase heat-related death and disease

Global warming will increase heat-related death and disease

29 Nov 2018 | 12:31 PM

LONDON: Climate change is making more people around the world vulnerable to heat exposure, putting them at greater risk of heart and kidney disease, heat stress, and other heat-related killers, scientists warned on Wednesday.

Scientists regrow hair on wounded skin

Scientists regrow hair on wounded skin

28 Nov 2018 | 3:34 PM

NEW YORK: Researchers have regrown hair strands on damaged skin by stirring crosstalk among skin cells that form the roots of hair.

Google inks pact with Disney to run online ads

Google inks pact with Disney to run online ads

28 Nov 2018 | 12:25 PM

SAN FRANCISCO: Google has said it will now power advertising for Disney's collection of brands and properties — including Disney, ABC, ESPN, Marvel, Pixar and Star Wars — across multiple channels, including live streaming and direct-to-consumer content offerings.

Global warming outpaces efforts to slow it: UN

Global warming outpaces efforts to slow it: UN

27 Nov 2018 | 9:30 PM

PARIS: Humanity is falling further behind in the race against climate change, with the gap between greenhouse gas emissions and levels needed to achieve the Paris climate treaty temperature goals continuing to widen, the UN said Tuesday.

New method uses sunlight to purify water

New method uses sunlight to purify water

27 Nov 2018 | 2:15 PM

BERLIN: Scientists have developed a simple process that can remove persistent pollutants in water using mere sunlight under the most basic conditions.

India to launch earth observation satellite on Thursday

India to launch earth observation satellite on Thursday

27 Nov 2018 | 2:03 PM

CHENNAI: India will launch on Thursday its earth observation satellite and 30 small satellites from eight countries, the country's space agency said on Tuesday.

Lung disease may lead to dementia in middle-aged people

Lung disease may lead to dementia in middle-aged people

27 Nov 2018 | 1:53 PM

NEW YORK: Middle-aged adults who have lung disease may be at a greater risk of developing dementia or cognitive impairment later in life, according to a new research.

Apple launches free coding education program for students

Apple launches free coding education program for students

27 Nov 2018 | 1:36 PM

SAN FRANCISCO: Apple said on Monday it will offer new resources to open thousands of free "Hour of Code" sessions at its Apple Store facilities across the world to bring coding education to students.

Eat less meat to meet climate targets

Eat less meat to meet climate targets

27 Nov 2018 | 12:25 PM

NEW DELHI: The livestock sector could use almost half of the 1.5 degrees Celsius greenhouse gas emission budget allowed by 2030, so addressing this should be a key part of the strategy to hit climate targets, a new study said on Tuesday.

Facebook working on fix for bug showing old messages

Facebook working on fix for bug showing old messages

27 Nov 2018 | 12:20 PM

SAN FRANCISCO: With several users complaining about old messages resurfacing on their Facebook Messenger, the social networking giant said it was aware of the issue and was working on a fix, The Verge reported.

NASA's Insight spacecraft successfully lands on Mars after six-month journey

NASA's Insight spacecraft successfully lands on Mars after six-month journey

27 Nov 2018 | 4:35 PM

WASHINGTON: NASA's robotic InSight lander — designed to dig deep into the rocky surface of Mars to reveal its secrets — has successfully touched down on the Red Planet after a supersonic plunge through its rose-hued atmosphere, the US space agency said Tuesday.

Extreme weather turning Arctic brown, may impact climate change: Study

Extreme weather turning Arctic brown, may impact climate change: Study

27 Nov 2018 | 11:55 AM

LONDON: The increasing number of extreme events is causing dieback of Arctic plants or 'browning' across Arctic regions, a study has found.

  • SpectrumThe star loses sparkle

    The star loses sparkle

    Who would have thought Thugs of Hindostan (TOH) would be a dud. Call it disappointment of the year, massive let-down or one of the worst films of super dependable Aamir Khan, it fell like a thud at the boxoffice. Last records show it collected a mere Rs 150 crore.

  • The sailors’ diaries

    “…details to reach Ceylon from Bhatkal, sail in the direction of Dhruv or Agasat, towards the eastern rising direction.

  • Discovering the ‘readymade’

    Opaque Emblems is a group show by six artists — Atul Dodiya, Subodh Gupta, Louise Lawler, Isamu Noguchi, Dayanita Singh and Hiroshi Sugimoto — all of whom have deployed “pre-existing objects” or “found articles” in their myriad creations.

    more Spectrum...
    All for institutional equalityIn Conversation

    All for institutional equality

    05 Dec 2018 | 12:29 AM
    Be the workers’ voiceLabour Law

    Be the workers’ voice

    05 Dec 2018 | 12:29 AM
    Options for non-med studentsCareer Hotline

    Options for non-med students

    05 Dec 2018 | 12:29 AM
    more Jobs & Careers...