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Obsolete COVID-19 information continues to circulate in Okanagan – Revelstoke Review

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The B.C. government says a COVID-19 fact sheet, downplaying the effectiveness of a mask in keeping oneself safe from viral infection, is outdated.

This comes after the one-page fact sheet, bearing the logos of the provincial ministry of health and the BC Centre for Disease Control, circulated social media in the South Okanagan.

A copy was recently received at the Summerland Review.

The sheet, titled Coronavirus Protection, lists seven suggestions in point form.

The first six are items which have been mentioned time and again, including washing hands, avoiding close contact with people who are sick, cleaning and disinfecting frequently touched objects and surfaces and staying home when sick.

The seventh point states, “wearing a mask is not an effective measure to keep yourself safe from viral infection.”

The fact sheet, although originated from the BC Centre of Disease Control, is now an obsolete document, according to the government.

Ministry of Health spokesperson Shannon Greer said the COVID-19 fact sheet was created by the BC Centre for Disease Control, but was removed from the website and from distribution in May after public health began recommending the use of non-medical masks in situations where one cannot keep a safe distance from others.

READ ALSO: Wearing non-medical masks now recommended in public: Canada’s top doctor

READ ALSO: COVID-19: Masks now mandatory on public transit, ferries in B.C.

The province and the BC Centre for Disease Control have advocated wearing non-medical face masks as a way of slowing the spread of the virus.

The BC Centre for Disease Control also has information about the use of non-medical masks, stating that masks do not replace other preventative measures.

“Masks, face coverings and gloves are the least protective measures for reducing transmission of COVID-19. Masks, when worn properly and for short periods, may offer some protection especially when you are not able to keep a 2 metre distance from others,” a statement on the BC Centre for Disease Control website reads.

The centre includes information on cloth masks, other cloth face coverings including bandanas and scarves, industrial respirators and medical personal protective equipment.

They explain cloth masks should cover the nose and mouth and should fit snugly and securely, yet still allowing the wearer to breathe easily.

Medical personal protective equipment, such as medical and surgical masks and medical N95 respirators are listed by the BC Centre for Disease Control as well, but these pieces of equipment should be reserved for health care workers, not the general public.

“Non-medical masks are meant to protect other people in case you are infected and are recommended to be used in situations when physical distancing is challenging (i.e…public transportation),” said Greer.

“COVID-19 is spread through infected droplets from a sick person’s mouth or nose. Wearing a mask when you are sick, helps protect people around you from the droplets that carry the virus. It does not guarantee that you, as the wearer, are protected.”

For those who are healthy, wearing a non-medical or cloth mask or face covering can help to protect others. This is because some people can spread the virus when they have very mild symptoms or may not know that they are infected. In this case, wearing a mask can help protect others by containing your own droplets when talking, coughing or sneezing.

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NASA Publishes Artemis Plan to Land First Woman, Next Man on Moon in 2024 – Stockhouse

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WASHINGTON , Sept. 21, 2020 /PRNewswire/ — Following a series of critical contract awards and hardware milestones, NASA has shared an update on its Artemis program, including the latest Phase 1 plans to land the first woman and the next man on the surface of the Moon in 2024.

In the 18 months since NASA accepted a bold challenge to accelerate its exploration plans by more than four years and establish sustainable exploration by the end of the decade, the agency has continued to gain momentum toward sending humans to the Moon again for the first time since the last Apollo lunar mission in 1972.

“With bipartisan support from Congress, our 21st century push to the Moon is well within America’s reach,” said NASA Administrator Jim Bridenstine . “As we’ve solidified more of our exploration plans in recent months, we’ve continued to refine our budget and architecture. We’re going back to the Moon for scientific discovery, economic benefits, and inspiration for a new a generation of explorers. As we build up a sustainable presence, we’re also building momentum toward those first human steps on the Red Planet.”

In its formal plan, NASA captures Artemis progress to date, identifying the key science, technology and human missions, as well as the commercial and international partnerships that will ensure we continue to lead in exploration and achieve our ambitious goal to land astronauts on the Moon.

The agency’s powerful new rocket, the Space Launch System (SLS), and the Orion spacecraft are closer than ever to their first integrated launch. The spacecraft is complete while the core stage and its attached four engines are undergoing a final series of tests that will culminate in a critical hot fire test this fall.

Early Artemis Missions

Following a successful hot fire test, the core stage will be shipped to the agency’s Kennedy Space Center in Florida for integration with the spacecraft. NASA will launch an SLS and an Orion together on two flight tests around the Moon to check performance, life support, and communication capabilities. The first mission – known as Artemis I – is on track for 2021 without astronauts, and Artemis II will fly with crew in 2023.

In the Phase 1 plan, NASA notes additional details about conducting a new test during the Artemis II mission – a proximity operations demonstration. Shortly after Orion separates from the interim cryogenic propulsion stage, astronauts will manually pilot Orion as they approach and back away from the stage. This demonstration will assess Orion’s handling qualities and related hardware and software to provide performance data and operational experience that cannot be readily gained on the ground in preparation for rendezvous, proximity operations, and docking, as well as undocking operations in lunar orbit beginning on Artemis III.

While preparing for and carrying out these flight test missions, NASA already will be back on the Moon robotically – using commercial delivery services to send dozens of new science investigations and technology demonstrations to the Moon twice per year beginning in 2021.

In 2024, Artemis III will be humanity’s return to the surface of the Moon. After launching on SLS, astronauts will travel about 240,000 miles to lunar orbit aboard Orion, at which point they will directly board one of the new commercial human landing systems , or dock to the Gateway to inspect it and gather supplies before boarding the landing system for their expedition to the surface.

Wearing modern spacesuits that allow for greater flexibility and movement than those of their Apollo predecessors, astronauts will collect samples and conduct a range of science experiments over the course of nearly seven days. Using the lander, they will return to lunar orbit before ultimately heading home to Earth aboard Orion.

Work is progressing rapidly on the Gateway. NASA will integrate the first two components to launch – the power and propulsion element and the habitation and logistics outpost – in 2023. This foundation for the Gateway will be able to operate autonomously, conducting remote science experiments when astronauts are not aboard. NASA has selected the first two science instrument suites to conduct space weather investigations in lunar orbit before crew visits.

While NASA has not made a final decision to use the Gateway for Artemis III, Artemis IV and beyond will send crew aboard Orion to dock to the Gateway, where two crew members can stay aboard the spaceship in orbit while two go to the surface. Over time, the outpost will evolve, with new modules added by international partners, allowing crew members to conduct increasingly longer lunar missions.

As detailed in the agency’s concept for surface sustainability earlier this year, an incremental buildup of infrastructure on the surface will follow later this decade, allowing for longer surface expeditions with more crew. That concept calls for an Artemis Base Camp that would include new rovers, power systems, habitats, and more on the surface for long-term exploration of the Moon.

Throughout the Artemis program, robots and humans will search for, and potentially extract, resources such as water that can be converted into other usable resources, including oxygen and fuel. By fine-tuning precision landing technologies as well as developing new mobility capabilities, astronauts will travel farther distances and explore new regions of the Moon.

Learn more about NASA’s Artemis program at:

www.nasa.gov/artemis

Cision View original content to download multimedia: http://www.prnewswire.com/news-releases/nasa-publishes-artemis-plan-to-land-first-woman-next-man-on-moon-in-2024-301135059.html

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Arctic ice melt doesn't boost sea levels, so do we care? – FRANCE 24

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Paris (AFP)

US government scientists reported Monday that the Arctic Ocean’s floating ice cover has shrivelled to its second lowest extent since satellite records began in 1979.

Until this month, only once in the last 42 years has Earth’s frozen skull cap covered less than four million square kilometres (1.5 million square miles).

The trend line is clear: sea ice extent has diminished 14 percent per decade over that period. The Arctic could see it’s first ice-free summer as early as 2035, researchers reported in Nature Climate Change last month.

But all that melting ice and snow does not directly boost sea levels any more than melted ice cubes make a glass of water overflow, which gives rise to an awkward question: who cares?

Granted, this would be bad news for polar bears, which are already on a glide path towards extinction, according to a recent study.

And yes, it would certainly mean a profound shift in the region’s marine ecosystems, from phytoplankton to whales.

But if our bottom-line concern is the impact on humanity, one might legitimately ask, “So what?”.

As it turns out, there are several reasons to be worried about the knock-on consequences of dwindling Arctic sea ice.

– Feedback loops –

Perhaps the most basic point to make, scientists say, is that a shrinking ice cap is not just a symptom of global warming, but a driver as well.

“Sea ice removal exposes dark ocean, which creates a powerful feedback mechanism,” Marco Tedesco, a geophysicist at Columbia University’s Earth Institute, told AFP.

Freshly fallen snow reflects 80 percent of the Sun’s radiative force back into space.

But when that mirror-like surface is replaced by deep blue water, about the same percentage of Earth-heating energy is absorbed instead.

And we’re not talking about a postage stamp area here: the difference between the average ice cap minimum from 1979 to 1990 and the low point reported today — more than 3 million km2 — is twice the size of France, Germany and Spain combined.

The oceans have already soaked up 90 percent of the excess heat generated by manmade greenhouse gases, but at a terrible cost, including altered chemistry, massive marine heatwaves and dying coral reefs.

And at some point, scientists warn, that liquid heat sponge may simply become saturated.

– Altering ocean currents –

Earth’s complex climate system includes interlocking ocean currents driven by wind, tides and something called the thermohaline circulation, which is itself powered by changes in temperature (“thermo”) and salt concentration (“haline”).

Even small changes in this Great Ocean Conveyor Belt — which moves between poles and across all three major oceans — can have devastating climate impacts.

Nearly 13,000 years ago, for example, as Earth was transitioning out of an ice age into the interglacial period that allowed our species to thrive, global temperatures abruptly plunged several degrees Celsius. They jumped back up again about 1,000 years later.

Geological evidence suggests a slowdown in the thermohaline circulation caused by a massive and rapid influx of cold, fresh water from the Artic region was partly to blame.

“The fresh water from melting sea ice and grounded ice in Greenland perturbs and weakens the Gulf Stream,” part of the conveyor belt flowing in the Atlantic, said Xavier Fettweis, a research associate at the University of Liege in Belgium.

“This is what allows western Europe to have a temperate climate compared to the same latitude in North America.”

The massive ice sheet atop Greenland’s land mass saw a net loss of more than half-a-trillion tonnes last year, all of it flowing into the sea.

Unlike sea ice, which doesn’t increase sea levels when it melts, runoff from Greenland does.

That record amount was due in part to warmer air temperatures, which have risen twice as fast in the Arctic as for the planet as a whole.

But it was also caused by a change in weather patterns, notably an increase in sunny summer days.

“Some studies suggest that this increase in anticyclonic conditions in the Arctic in summer results in part from the minimum sea ice extent,” Fettweis told AFP.

– Bears on thin ice –

The current trajectory of climate change and the advent of ice-free summers — defined by the UN’s IPCC climate science panel as under one million km2 — would indeed starve polar bears into extinction by century’s end, according to a July study in Nature.

“Human-caused global warming means that polar bears have less and less sea ice to hunt on in the summer months,” Steven Amstrup, lead author of the study and chief scientist of Polar Bears International, told AFP.

“The ultimate trajectory of polar bears with unabated greenhouse gas emissions is disappearance.”

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Arctic sea ice shrinks to 2nd lowest level in 4 decades – CBC.ca

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Warming in the Arctic shrank the ice covering the polar ocean this year to its second-lowest extent in four decades, scientists announced Monday, yet another sign of how climate change is rapidly transforming the region.

Satellites recorded this year’s sea ice minimum at 3.74 million square kilometres on Sept. 15, only the second time the ice has been measured below 4 million square kilometres in 40 years of record keeping, said researchers at the National Snow and Ice Data Center

“It’s fairly devastating that we’ve had such consistently low sea ice. But unfortunately, it’s not surprising,” said Twila Moon, a glaciologist at the research centre in Boulder, Colorado.

The record low of 3.41 million square kilometres, reached in 2012 after a late-season cyclonic storm broke up the remaining ice, is not much below what researchers see today.

This year’s decline was especially fast between Aug. 31 and Sept. 5, thanks to pulses of warm air coming off a heat wave in Siberia, according to the NSIDC. The rate of ice loss during those six days was faster than during any other year on record. Another team of scientists found in July that the Siberian heat wave would have been all but impossible without human-caused climate change.

As the Arctic sea ice vanishes, it leaves patches of dark water open. Those dark waters absorb solar radiation rather than reflecting it back out of the atmosphere, a process that amplifies warming and helps to explain why Arctic temperatures have risen more than twice as fast as the rest of the world over the last 30 years.

Arctic sea ice at the North Pole is seen from the German icebreaker RV Polarstern, on Aug. 19, 2020. The voyage made an unplanned detour because of lighter-than-usual sea ice conditions. (Markus Rex/Alfred Wegener Institute via AP)

The loss of sea ice also threatens Arctic wildlife, from polar bears and seals to plankton and algae, said Tom Foreman, a polar wildlife expert and Arctic guide.

“The numbers that we’re getting in terms of extent of sea ice decrease each year put us pretty much on red alert in terms of the level of worry that we have, our concern for the stability of this environment,” Foreman said.

The same warming that is opening summertime Arctic waters is also eating away at the ice sheets covering Arctic lands in Canada and Greenland. The faster those ice sheets melt into surrounding ocean, the faster sea levels will rise worldwide.

Given that a warmer Arctic could impact weather patterns worldwide, Moon said the world should not wait for another new record sea ice low before taking action to limit climate change.

“We should work very hard to make differences in our emissions of polluting gases so that we do not see so many records created in the future,” Moon said.

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