On the Edge of Change: Episodes One, Two, Three, Four, Five and Six - Aboard the SA Agulhas II

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On the Edge of Change: Episodes One, Two, Three, Four, Five and Six - Aboard the SA Agulhas II

Post by Lisbeth »

The following is not only about consevation, but I find it extremely interesting and hope that you will too :-)

By Emilie Gambade & Malibongwe Tyilo• 17 October 2019

The first episode focuses on the South African icebreaking polar supply and research ship, the SA Agulhas II, and the scientific and educational programmes run on the vessel while at sea.

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“I think what is critical here is to have interest and know the history. South Africa was one of the first [12] signatories in the Antarctic Treaty. Not many people are aware of that. Not many people are aware that this vessel is South Africa’s third generation vessel in polar research… I wish that kind of information could be published and be taken out there for everyone to appreciate how much, in fact, this ocean is providing or contributing to the GDP of the country.”

On 7 July, as the ship was battered by a massive storm, with waves reaching 10m high, Captain Knowledge Bengu, master of the SA Agulhas II, is on the bridge, talking about why South Africa is uniquely positioned to lead the way in maritime research and oceanography; the Antarctic Treaty he is referring to came into effect in 1961, and declared the continent of Antarctica as a scientific preserve that doesn’t belong to any single country.

It’s a continent that is 4,824km away from Cape Town on a route that follows and traverses one of the fastest current in the world, the Agulhas.

This time, though, the SA Agulhas II is not heading towards Antarctica. On board are 41 students, and 32 lecturers and scientists – as well as the ship’s crew – split between the SEAmester programme and the Agulhas System Climate Array (ASCA) research team. The former group, led by UCT’s head of oceanography, Professor Isabelle Ansorge, participates in lectures and scientific research on deck and in laboratories, while the ASCA research team is on board to conduct ocean research and observe marine life along the Agulhas Current.

The ship, which was commissioned by the Department of Environmental Affairs in 2011, and completed at a price tag of R1,300,000,000, is the first of its kind in the world. It combines passenger amenities, research facilities, as well as innovative icebreaking capabilities, putting South Africa at the forefront of Antarctic research.

In the next episode, we take a deeper look at the Agulhas Current and how changes in the current are likely to affect South African weather; although we are still at the beginning of the research done in our oceans – Atlantic, Indian and Austral – we know that the warm waters of the current have been linked to South African rainfall and floods. Monitoring their width, salinity, heat and turbulence is crucial to understand how our oceans are changing in times of climate crisis.

The miniseries On the Edge of Change will be published every Wednesday on Maverick Life and Daily Maverick. To see all the videos, subscribe to our YouTube channel https://www.youtube.com/channel/UC0CM9l ... 8xkr_0x_-A


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Re: On the Edge of Change: Episode One, aboard the SA Agulhas II

Post by Lisbeth »

South Africa's flagship

R250 000

The daily running cost of the SA Agulhas II

Surprising for SA of today; I wonder who is sponsoring this "adventure" :-?


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Re: On the Edge of Change: Episode One, aboard the SA Agulhas II

Post by Flutterby »

Interesting. \O


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Re: On the Edge of Change: Episode One, aboard the SA Agulhas II

Post by Lisbeth »

On the Edge of Change, Episode Two: The extraordinarily powerful Agulhas Current

By Emilie Gambade & Malibongwe Tyilo• 23 October 2019

The second episode of our series aboard the vessel SA Agulhas II focuses on the Agulhas Current and its role in global ocean circulation.



Physical oceanographer and post-doctoral researcher at Locean, Dr Katherine Hutchinson explains, in interview published in The Conversation, that, “The Agulhas Current transports warm tropical Indian Ocean water southwards along the South African coast. It modulates the rainfall along the east coast and interior regions of South Africa by providing the latent heat of evaporation needed for onshore wind systems to pick up moisture and carry it inland.”

Known as one of the fastest currents in the world, along with the Gulf Stream, the Kuroshio, and the East Australian Current, the Agulhas Current “plays a critical role in global ocean circulation, which is why it’s considered important for climatic conditions across the world,” she adds.

In this episode, scientists onboard the vessel and researchers explain how the current not only affects South African weather but also has a global impact; although we are still at the beginning of the research done in our oceans – Atlantic, Indian and Austral – we know that the warm waters of the current have been linked to South African rainfall and floods. Monitoring their width, salinity, heat and turbulence is crucial to understand how our oceans are changing in times of climate crisis.

The polar ship is equipped with different instruments used to measure the properties of the current, throughout the water column. Hutchinson notes: “But the array showed that it has been broadening and not strengthening. The effects of this broadening are currently being investigated, but one outcome is that a wider current allows for a greater exchange of water between the inshore and offshore areas, meaning that pollutants will more easily be shifted out to sea.”

In the next episode of On the Edge of Change, we look at oceans in a changing climate. Says Professor Isabelle Ansorge: “We have all seen the movie years ago by Al Gore, where he goes up and up, and up, you can see the CO2 rising… We’re even higher than that now. And that movie was nine years ago and he was talking about a warming planet… We are long gone from that. We’re so much further into this sort of firepot.”


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Re: On the Edge of Change: Episode One, Two, Three Aboard the SA Agulhas II

Post by Lisbeth »

On the Edge of Change, Episode Three: Oceans in a changing climate

By Emilie Gambade & Malibongwe Tyilo• 29 October 2019

This week’s episode of On the Edge of Change reveals how seriously the climate crisis is affecting our oceans.

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According to the International Union for Conservation of Nature (IUCN), “at the front line of climate change, the ocean, the coastlines and coastal communities are being disproportionately impacted by increasing carbon dioxide (CO2) and other greenhouse gas (GHG) emissions from human activities”.

This assessment is shared by Professor Isabelle Ansorge who notes that “we have all this excess carbon, so what we’re starting to see is that the oceans are responding by taking up a lot of this carbon”.

Oceans cover 71% of the earth’s surface and “make up 95% of all the space available to life” says the WWF. They not only provide us with the oxygen we breathe, they “are a life-support system” for our planet, a source of food and vehicle for trade.

IUCN adds that “The ocean plays a central role in regulating the Earth’s climate. The Fifth Assessment Report published by the Intergovernmental Panel on Climate Change (IPCC) in 2013 revealed that it has thus far absorbed 93% of the extra energy from the enhanced greenhouse effect, with warming now being observed at depths of 1,000m.

“As a consequence, this has led to increased ocean stratification (prevention of water mixing due to different properties of water masses), changes in ocean current regimes, and expansion of depleted oxygen zones. Changes in the geographical ranges of marine species and shifts in growing seasons, as well as in the diversity and abundance of species communities are now being observed. At the same time, weather patterns are changing, with extreme events increasing in frequency”.

That was back in 2013.

Six years later, rising sea levels seem an irresistible threat – according to the World Meteorological Organisation (WMO), “The last time the Earth experienced a comparable concentration of CO2 (carbon dioxide in the atmosphere) was three to five million years ago when the temperature was 2-3°C warmer and the sea level was 10-20 metres higher than now”; the melting of polar ice a sore reality – scientists have said that approximately 217 billion tons of ice (197 billion metric tons of water) melted into the Atlantic Ocean in July this year; and warming oceans can change currents, making monitoring the Agulhas a foremost necessity.

In the next episode of On the Edge of Change, we look at sea-level rise; what threats does it pose; how fast is it accelerating; what are we doing about it.


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Re: On the Edge of Change: Episode One, Two, Three Aboard the SA Agulhas II

Post by Sprocky »

Awesome!! I spent two months on that ship in 1996. \O


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Re: On the Edge of Change: Episode One, Two, Three Aboard the SA Agulhas II

Post by Lisbeth »

I am very happy that someone like this series, because the videos are soooo informative and give a very realistic view on what is happening \O


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Re: On the Edge of Change: Episode One, Two, Three Aboard the SA Agulhas II

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Sprocky wrote: Wed Oct 30, 2019 10:29 am Awesome!! I spent two months on that ship in 1996. \O
Wow,must have been interesting. \O


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Re: On the Edge of Change: Episode One, Two, Three, Four Aboard the SA Agulhas II

Post by Lisbeth »

On the Edge of Change, Episode Four: Sea-level rise, extreme weather and coastal change

By Emilie Gambade & Malibongwe Tyilo• 6 November 2019

"What's coming is coming. The truth doesn't care about our misunderstanding of it. This is what's coming" – Kevin Bloom on the global impacts of sea-level rise on our environment.

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“We’ve just seen a report in the last few days of some scientists that tells us they think far more people are at risk of seal-level rise than they had expected”, says Mary Robinson, current Chair of the Elders, first female President of Ireland, former UN High Commissioner for Human Rights.

Sea-level rise is increasing and at a faster pace than we thought; a new research published in Nature Communications on the 29th of October, explains that “global vulnerability to sea-level rise and coastal flooding” could affect three times more people than previously expected. The New York Times notes that the research highlight the threat posed by sea-level rise and could lead to “some of the world’s great coastal cities” being wiped out off the map. “Southern Vietnam could all but disappear. (…) In Shanghai, one of Asia’s most important economic engines, water threatens to consume the heart of the city and many other cities around it. (…) The new projections suggest that much of Mumbai, India’s financial capital and one of the largest cities in the world, is at risk of being wiped out”.

In this episode, we talk to former President of Ireland Mary Robinson, Dr Carlos Loureiro, a Marie Sklodowska-Curie fellow, physical oceanographer Sheveenah Taukoor and Our Burning Planet senior investigator Kevin Bloom about the global impacts of sea-level rise on our environment and the humanitarian crisis that could unfold.

In the next episode of On the Edge of Change, we are in discussion with anthropogenic researcher Dr Vonica Perold, talking about marine plastic pollution, the threats to marine life, the environment, food safety and human health.


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Re: On the Edge of Change: Episode One, Two, Three, Four, Five- Aboard the SA Agulhas II

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On the Edge of Change, Episode Five: Marine plastic pollution and the problem with ocean clean ups

By Emilie Gambade & Malibongwe Tyilo• 14 November 2019

A product that was once lauded as a stroke of genius has become one of the fastest-growing environmental problems in the world.

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On 27 June, a new version of the Ocean Clean Up, dubbed System 001/B, was launched with the aim of cleaning a region in the Pacific Ocean known as the Great Pacific Garbage Patch from floating plastics.

System 001/B was not the first such structure to be released in the ocean; System 001 (you see the connection), which reportedly cost around $25-million to design and build, was dropped in December 2018, its release followed by a rogue wave of both wild applause and harsh criticism from scientists and experts around the world.

But plastic wasn’t always the elephant in the littered room and the massive threat to the environment, wildlife and humanity that is today. Back in the 1950s, it was celebrated as a revolutionary material, infiltrating multiple layers of product R&D and transforming our very lifestyles.

As Dr Delphine Thibault, associate professor in biological oceanography, explains, “We have to use plastic. There are things that are in plastic and we can’t make them otherwise”.

The word plastic, derived from the Greek plastikos, “means “pliable and easily shaped”. In the 19th century, Alexander Parkes, a British inventor, is said to have invented the first plastic, called Parkesine, made from cellulose (a substance found in plant cells) and then treated with nitric acid. Parkesine went on to win a bronze medal at the 1862 World’s Fair in London and soon replaced materials like ivory and tortoiseshell. But it was inventor Leo Hendrik Baekeland, who, in 1907, created the first-ever fully synthetic material, dubbed Bakelite, the real ancestor of today’s plastic.

Plastic started to make its way into everyday life, its production boosted by World War II because of its revolutionary properties: it is a lightweight and durable material – polycarbonate, for example, is shock-resistant and can withstand high temperatures without breaking or losing its shape.

And after the war, plastic became ubiquitous: it was used to package and protect food, to create garments, as an exfoliator in face creams, and even as a replica of haemoglobin when, in 2007, the University of Sheffield developed artificial blood made from plastic molecules with, at its centre, an iron atom, for situations where blood is needed urgently.

Humanity’s production, use and consumption of plastic rapidly became insatiable, resulting in the gigantic amount of waste we have today.

In the 1960s, scientists observed plastic debris in the oceans, and in the early 1990s, studies showed that 60-80% of the waste in the oceans was non-biodegradable plastic that would not disappear from the water’s surface, but instead would break down into minuscule particles.

Today, in-depth reports and research have raised the alarm on how plastic waste is choking the oceans, destroying marine wildlife and piling up on landfills across the planet.

In April 2018, ISS Today noted that the Western Indian Ocean’s marine and wildlife ecosystems, “which are interdependent with the health, food security and national economies of over 200 million people,” are polluted with tons of plastic litter; Daily Maverick columnist and Greenpeace Africa Volunteer, Elaine Mills, called a plastic spade… a monstrous plastic spade: “Plastic pollution is monstrous – and humans are the monsters”.

The Earth Day Network, which runs campaigns against plastic (especially single-use plastic) has listed many alarming facts, such as:

“Every minute, one garbage truck of plastic is dumped into our oceans; the amount of plastic in the ocean is set to increase tenfold by 2020; by 2050 there will be more plastic in the oceans than there are fish (by weight); plastic is found in the ocean as far as 11km deep, meaning synthetic fibres have contaminated even the most remote places on Earth”.

And the list goes on.

The World Economic Forum published an article in March 2018 explaining that:

“Every year, an estimated eight million tons of plastic end up in the ocean. A product that was once lauded as a stroke of genius has become one of the fastest growing environmental problems in the world. It can be hard to imagine how much eight million tons actually is. To put it in perspective, it’s roughly equal to the weight of the entire population of Spain and the United Kingdom.”

Countries around the world are acting against the proliferation of plastics and specifically single-use plastics.

A United Nations Environment report states that, “As of July 2018, 127 out of 192 countries reviewed (about 66%) have adopted some form of legislation to regulate plastic bags,” adding that in South Africa, legislation includes the “prohibition of the manufacture, trade and commercial distribution of domestically produced and imported plastic carrier bags and plastic flat bags, with fines provided for breach of requirements up to 10 years’ imprisonment; as well as charges to retailers for plastic bags”.

Twenty-nine countries have also passed “some type of tax on single-use plastics, either as a special environmental tax, waste disposal fees or charges, or in the form of higher excise taxes for single-use plastics,” including Benin and Lesotho, although not South Africa. Meanwhile, France is setting penalties on goods packaged with non-recycled plastic and Canada aims to ban single-use plastics by 2021.

In 2018, the Royal Statistical Society named as the year’s winner of the International Statistic, “90.5% – the proportion of plastic waste that has never been recycled.”

Yet, if you think this should be enough to make everyone worry about this man-made disaster, count on US President Donald Trump to bury the issue under a ton of garbage tweets and comments. At this year’s G20 Summit in Japan, he said:

“We have the cleanest water we have ever had, we have the cleanest air we’ve ever had, but I’m not willing to sacrifice the tremendous power of what we’ve built up over a long period of time and what I’ve enhanced and revived.”

But if plastic has become a symbol for climate change and human pollution, anthropogenic researcher Dr Vonica Perold notes that some scientists and researchers have pointed out that it might be distracting us from the real crisis.

Indeed, an article published in Marine Policy, by Richard Stafford and Peter JS Jones, Viewpoint – Ocean plastic pollution: A convenient but distracting truth?, noted that, “Plastic has become a focus in the media and public domains partly through the draw of simple lifestyle changes, such as reusable water bottles, and partly through the potential to provide ‘quick fix’ technological solutions to plastic pollution, such as large-scale marine clean-up operations and new ‘biodegradable’ plastic substitutes. As such, ocean plastic can provide a convenient truth that distracts us from the need for more radical changes to our behavioural, political and economic systems, addressing which will help address larger marine environmental issues, as well as the cause of plastic pollution, i.e. over-consumption.”

Perold adds that radical changes to our behavioural, political and economic systems are undeniably necessary.

In the final episode of On the Edge of Change, back on land, we talk to Minister of Forestry and Fisheries and Environmental Affairs Barbara Creecy, former Irish president Mary Robinson, former Cosatu general secretary Jay Naidoo and Our Burning Planet senior investigator Kevin Bloom about the story of a generation, of humanity and about what happens next:

Are we approaching the end of the Age of the Human?


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