28/08/2021

These 12 Places Could Be The Key To Saving The Planet — Study

InverseTara Yarlagadda

To save the planet, we need to think more strategically, experts say. 


Some days, it just feels like the world is ending.

Between a global biodiversity crisis causing the “unprecedented” decline of nature and a climate crisis sparking ever more extreme weather events, we are entering into an era where the future of planet Earth is increasingly in peril.

But as sobering as the data around the environmental degradation may seem, scientists still say there is hope to conserve Earth’s wildlife and save our planet from the climate crisis, according to a map published Tuesday in the journal Nature.

According to the research, by focusing on a few key areas of planet Earth, we can make big gains for biodiversity conservation, clean water, and carbon storage.

“Our map offers an integrated perspective on which areas of land would offer the greatest joint benefits for biodiversity, carbon, and water,” Martin Jung, a co-author on the study and a research scholar at the International Institute for Applied Systems Analysis, tells Inverse.

Necessary context

 As the climate crisis worsens, scientists are increasingly calling for “nature-based solutions into climate mitigation strategies,” according to the Nature report. Likewise, a 2019 United Nations report suggests that global warming increases species loss, fueling the fire of the biodiversity crisis.

Earlier this summer, the Intergovernmental Panel on Climate Change (IPCC) and Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) conducted a joint workshop addressing biodiversity loss and the climate crisis.

Scientists now recognize the need to work on these two issues — the climate crisis and the biodiversity crisis — together, highlighting how the two dilemmas are inextricably intertwined.

How they did it

To that end, researchers in the Nature study created a map highlighting specific areas of land around the globe that can help with the conservation of three elements essential for a healthy planet:
  • Clean water
  • Carbon storage
  • Biodiversity
“[Our map] shows the top-ranked areas in the world that provide the greatest joint benefit for all three of these assets combined,” Jung says. 

A map of the highest priority areas for biodiversity, water and carbon conservation. Jung et al

What’s new

Jung’s research team ranked high-priority areas of planet Earth based on their ability to conserve biodiversity, water, and carbon. The highest-priority areas received a rank between 1 and 10.

The scientists then generated a map flagging the highest priority areas for land conservation. These high-priority regions include:
  1. Southern China
  2. Madagascar
  3. Central America
  4. The Caribbean
  5. The Brazilian Atlantic forest
  6. The northern region of South America (Colombia, Guyana, etc.)
  7. Southeast Asia
  8. Congo Basin and parts of southern Africa
  9. European Russia
  10. Papua New Guinea
  11. The Mediterranean
  12. Parts of the western and southeastern US
Ultimately, the scientists find that “managing the top-ranked 10 percent of land” or the highest-priority areas on planet Earth can help conserve:
  • 42.5 percent of vertebrate and plant species (including 33.7 percent of all known plant species)
  • 26 percent of total world carbon
  • 22.1 percent of clean water globally
When scientists broadened their criteria to managing the top-ranked 30 percent of the land, the metrics look even more promising, conserving:
  • 57.9 percent of vertebrate and plant species
  • 60.7 percent of total world carbon
  • 66 percent of clean water globally
Jung explains why the scientists prioritized certain regions of the world in their map:
We find that some areas in the world have much larger potential for retaining these benefits than others, which is important because it reflects that not quantity (e.g. how much land we should manage for conservation) but quality (e.g. which specific regions of land and how they are managed) really matters.
Why it matters

Each of the three crucial factors that the report considers — biodiversity, clean water, and carbon storage — is increasingly in jeopardy as the climate crisis worsens.
  • One in three people worldwide lack access to safe drinking water, and droughts linked to the climate crisis are worsening the situation
  • According to a 2019 United Nations report, 1 million species are being threatened with extinction
  • A more recent United Nations IPCC report finds that global temperatures will likely rise to 1.5 degrees Celsius above pre-industrial levels over the next few decades, based on carbon dioxide emissions in the atmosphere
But if policymakers and scientists work smarter, we can hone in on addressing these issues.

“This is important now as we need to step up our efforts to combat both biodiversity loss as well as climate change and pursuit of these targets should not be done in isolation, but considered jointly,” Jung argues.

Baobab trees in Madagascar. Researchers identified Madagascar as one of the high-priority areas for targeted conservation efforts to improve biodiversity, clean water, and carbon storage. Getty

What’s next

The new map provides a crucial action plan for targeted conservation as we head into a time of unprecedented environmental upset, requiring immediate action by world leaders and influential policymakers.

“In the context of international climate and biodiversity, this [map] offers a perspective and decision support tool,” for policymakers, large-scale investment funds, and businesses, Jung says.

The report is also timely because scientists are planning to adopt a new Global Biodiversity Framework during the 2022 Convention on Biological Diversity (CBD) in Kunming, China.

“The CBD's new proposed framework for post-2020 specifically highlights the integration of  ecosystem-based approaches for climate change adaption and mitigation, and our work can help to identify where this could be possible while also meeting biodiversity targets,” Jung concludes.

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(AU SMH) ‘Blistering Temperatures’: Dark Roofing Banned On Sydney’s Urban Fringe

Sydney Morning Herald | Angus Thompson

Dark roofing will be banned in Sydney’s south-west growth area in an attempt by the NSW government to dial back the heat island effect while providing sorely needed new homes.

Lighter coloured roofs will be a mandatory part of the planning controls for the Wilton area, busting the march of Colorbond Ironstone that has long been synonymous with Australian urban sprawl.

The dark rooftops of Sydney’s urban sprawl will come to a halt under new government regulations. Credit: Nick Moir

Residential lots must also be big enough for a tree in every backyard under a new set of rules applauded by urban-heat scientists as a step towards addressing rising temperatures following the grim picture painted by the latest Intergovernmental Panel on Climate Change report.

NSW Planning and Public Spaces Minister Rob Stokes said the report showed if the planning system didn’t take the construction of buildings and infrastructure more seriously, there could be catastrophic impacts on health, the economy and environment.

He said Wilton demonstrated how the issue could be confronted.

“Western Sydney already experiences blistering temperatures of over 50 degrees in summer. The need to adapt and mitigate urban heat isn’t a future challenge – it’s already with us,” Mr Stokes said, adding that the report would also be used to influence the government’s major city-planning draft policy, Design and Place.

“When designing lots for detached housing, we need backyards which are big enough to plant a tree or have a garden.

"We need to say goodbye to the trend of having dark roofs that not only attract and retain heat and raise ambient street temperatures, but lead to astronomical electricity bills because of the need to cool homes.”

Darker roofs contribute to western Sydney’s heat island effect by creating more radiant heat and higher energy consumption. Credit: Wolter Peeters

As well as requiring light-coloured roofing, the development controls prescribe that, for a residential lot of 15 by 18 metres, there needs to be a tree of at least eight metres mature height in the front and backyards, among rules for various lot sizes in the area where more than 9000 homes are expected to be built.

Western Sydney University urban heat expert Sebastian Pfautsch has gauged the canopy cover of various suburbs and found a section of Marsden Park, in the north-west, has 1 per cent, while parts of Wahroonga, on the upper north shore have more than 60 per cent.

An artist’s concept of the new Wilton neighbourhood in Sydney’s south-west growth area. Credit: NSW Government

He described the ongoing problem with dark roofs as “really low-hanging fruit to resolve” in terms of heat mitigation, and came down to aesthetic choice that had been left unaddressed.

Extreme weather

“It’s there, it’s just Colorbond, we love Colorbond in Australia but why we are not using more of the white than the black ... I don’t know why,” Dr Pfautsch said.

He said if the planning system persisted with freestanding homes, they needed to be more vertical, with lower floor space, allowing for greater ventilation, evaporative cooling and passive circulation, adding, “We need to move away from flat and wide.”

University of NSW Professor Mattheos Santamouris, who has had an extensive career researching urban heat, said so-called “cool roofs” could decrease the energy consumption of uninsulated buildings in western Sydney by up to 50 per cent, and several countries already regulated this.

He said western Sydney, where summer extremes were consistently far hotter than the east, was affected by desert winds, and radiant temperatures from dark roofing exacerbated the synoptic effects of this.

Global warming

However, Stephen McMahon, NSW branch president of the Urban Development Institute of Australia, and a developer involved in building the Wilton town centre, said the lobby supported the environmental aims, but the controls were “ill-conceived and unworkable”, and he objected to rules requiring “every roof to be painted white.”

“It will result in bureaucratically imposed blandness for new communities and will bring negligible improvement in thermal performance that could be achieved through new technologies in insulation, approaches to building design and shading, and other measures,” he said.

“We also object to the control that requires bigger backyards for the planting of trees ... How will government police compliance with this? Will swimming pools and garden sheds be prohibited?”

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(AU SMH) Santos Hit With Climate Lawsuit Over ‘Net Zero’ Claims

Sydney Morning HeraldCharlotte Grieve | Nick Toscano

Oil and gas giant Santos has been hit with a lawsuit over allegedly misleading and deceptive claims about its environmental credentials, including that the company has a clear plan to achieve net zero emissions by 2040 and that natural gas is a ‘clean fuel’.

The Australasian Centre for Corporate Responsibility (ACCR) filed a statement of claim in the Federal Court on Wednesday outlining its argument that Santos’ annual report makes false claims about the company’s approach to addressing climate change.

Santos has been hit with a lawsuit over allegedly misleading and deceptive conduct related to its environmental credentials. Credit: Bloomberg


One of the ACCR’s key claims is that Santos refers to natural gas as a “clean fuel” and it provides “clean energy”, according to a statement released by the group on Thursday.

“The annual report fails to disclose that the extraction, processing and use of natural gas releases significant quantities of carbon dioxide and methane into the atmosphere, gases which are key contributors to climate change and global warming,” the ACCR said.

The group is also taking aim at Santos’ claims to have a clear pathway towards reaching net zero emissions by 2040, an aspiration which relies on the development of carbon capture and storage technology and blue hydrogen.

“ACCR alleges that Santos failed to disclose that it has firm plans to increase its greenhouse gas emissions by developing new or existing oil and gas projects including in the Barossa, Dorado and Narrabri LNG projects,” its statement said.

“This calls into question whether Santos had reasonable grounds to assert it has a ‘clear and credible’ plan to reach net zero emissions by 2040.”

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The ACCR’s lawyers, the Environmental Defenders Office (EDO), will argue Santos has breached consumer laws by providing misleading or incomplete information to new investors and existing shareholders of the ASX-listed company and want the court to force Santos to issue “corrective statements regarding the environmental impacts of its operations”.

“Investors have a right to complete, open and honest information relating to a company they are investing – or considering investing – in.

"Accurate information about how the global energy transition towards net zero emissions may impact Santos’ future financial prospects is critical to investors’ ability to assess the viability of their investment and their financial and reputational exposure,” ACCR said.

Environmental Defenders Office (EDO) solicitor Zoe Bush said the lawsuit was a “world-first” designed to “challenge the accuracy of corporate net zero emissions targets, as well as the first in Australia concerning potential greenwashing by the oil and gas industry”.

The legal action is part of a rising trend of climate change litigation, following Environment Minister Sussan Ley’s decision to appeal the court ruling that found she had a duty of care to protect Australian children from climate harm.

The Age and Herald have also reported this week that investors are seeking to short sell carbon heavy stocks, which could become more attractive with the rise of climate litigation.

Australian Ethical head of research Stuart Palmer said the opportunity to profit from so-called ‘green-shorting’ could grow after a number of ‘catalysts’ in the transition to clean energy are passed, including the rise of climate litigation.

A Santos spokesman said in a statement: “It would not be appropriate for Santos to comment on matters before the court.”

MST Marquee analyst Mark Samter said the ACCR’s lawsuit was ideological and simplistic and queried the activist focus on fossil fuel producers, rather than consumers.

“If you permanently banned air travel you could reduce global oil demand by around 10 per cent. If you banned the production of petrochemicals, yes you would struggle to supply many medicines, clothes and most other household goods, but you could reduce oil demand by around 15 per cent.”

Mr Samter said fossil fuel producers needed to be included in the ‘just’ transition to clean energy, rather than “trying to eradicate them off the face of the planet”.

“I would argue Santos is streets ahead of peers with its transition strategy, albeit undoubtedly risks remain around it,” he said.

Santos’ share price fell by 1.95 per cent on Thursday to close at $6.04 per share.

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