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Newly Discovered Bacteria ‘Chonkus’ Offers Potential for Cleaning Up Carbon Dioxide

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07 Nov, 2024

This post was originally published on Eco Watch

Scientists have discovered a type of cyanobacteria found in marine volcanic vents, or seeps, that could help capture carbon dioxide emissions. However, finding a way to engineer and harvest the bacteria at industrial rates will be needed to help realize its potential.

The bacteria, known as UTEX 3222 or “Chonkus,” is a strain of Cyanobacterium aponinum that was found to reach high-density growth in scientific experiments. Chonkus was taken from marine volcanic vents in the Mediterranean Sea that had an environment high in carbon dioxide. In their tests, scientists found that Chonkus grew quickly on a solid medium, in liquid and in the presence of conditions including high light, high salinity and high pH levels.

Researchers collect samples of seawater from a shallow volcanic seep off the coast of the island of Vulcano, where volcanic vents ensure the water has a high level of dissolved CO2. Wyss Institute at Harvard University

Like plants, Chonkus metabolizes carbon dioxide and sunlight to create food for itself, but cyanobacteria can absorb even more carbon dioxide than plants. As the National Renewable Energy Laboratory reported, cyanobacteria like Chonkus can fix carbon dioxide about twice as efficiently as plants, plus they have the benefit of rapid growth to further improve their carbon-sequestering properties.

Scientists have known about this potential, but the new study, which was published in the journal Applied and Industrial Microbiology, pinpoints a particular cyanobacteria that grows faster than other studied specimens. As Grist reported, Chonkus in particular presented rapid growth and density in lab settings that made it especially promising for absorbing more carbon dioxide.

“When you grow a culture of bacteria, it looks like broth and the bacteria are very dilute in the culture, but we found that Chonkus would settle into this stuff that is much more dense, like a green peanut butter,” said Max Schubert, a lead author of the study and a lead project scientists at Align to Innovate, as reported by Grist.

Chonkus also has an advantage of naturally separating from water, which sets it apart from other cyanobacteria and algae that have been considered for carbon sequestration. While this trait further improves its potential, scientists still need to figure out how to genetically modify the bacteria in order to use it for efficient carbon dioxide fixing.

But scientists have only scratched the surface on finding cyanobacteria like Chonkus to help with carbon sequestration, so they may be able to not only engineer Chonkus for carbon sequestration but find other organisms to help with this mission.

“There’s no question we’ll keep finding really, really interesting biology in these vents,” said Braden Tierney, a lead author of the study and a microbiologist and executive director of The Two Frontiers Project, as Grist reported. “I can’t stress enough that this was just the first expedition.”

In addition to publishing their findings on the carbon sequestration potential of Chonkus, the research team also told BBC that they are developing a “living database” of bacteria samples that will allow other scientists around the world to further study microbes, even after the expeditions are over.

“Compared to other [carbon capture] solutions, microbes are infinitely replicable,” Tierney told BBC. “While there is no silver bullet for tackling climate change, it is really exciting to find an organism that is a really high performing engine for carbon capture.”

The post Newly Discovered Bacteria ‘Chonkus’ Offers Potential for Cleaning Up Carbon Dioxide appeared first on EcoWatch.

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Mitigating cybersecurity risks in tomorrow's smart cities

Mitigating cybersecurity risks in tomorrow's smart cities

As global cities embrace the potential of ‘smart’ technology, from optimised traffic management to advanced energy grids, the allure of a more efficient, sustainable and digitally connected urban landscape is becoming a reality.

However, with these advancements come significant cybersecurity challenges that cities must address to ensure the promise of innovation is not overshadowed by the risk of threats. To build the resilient, sustainable cities of tomorrow, cybersecurity must be integrated as a core principle in every step of development.

The evolution of smart cities

Smart cities represent a groundbreaking shift in urban planning and management. These cities integrate advanced technologies like the Internet of Things (IoT), artificial intelligence (AI), and 5G networks to improve city services such as traffic management, waste collection, energy distribution and emergency response.

Countries like Singapore, South Korea and Germany are leading the way, investing billions in smart city technologies. China, as part of its ‘Made in China 2025’ initiative, has outlined an ambitious Smart Cities Development Plan to modernise its urban infrastructure.

Yet, as investment increases, so does the risk. The interconnected nature of smart cities presents an attractive target for cybercriminals, with critical infrastructure systems — such as energy, health care and transportation — vulnerable to cyber attacks that could ripple across the urban landscape.

Key cyberthreats facing smart cities

The list of cybersecurity threats faced by smart cities is diverse. Some have the potential to cause significant disruption to services and cause damage and loss for residents. Some of the most significant include:

Ransomware attacks on critical infrastructure:

Ransomware attacks on city systems are escalating as cybercriminals capitalise on the growing digital footprint of urban infrastructure. Municipalities worldwide have experienced system lockdowns, where attackers demand ransom payments to restore access to critical services.

Public safety system attacks:

Emergency systems, video surveillance and gunshot detection technologies are indispensable for public safety in smart cities. Unfortunately, these systems are prime targets for cyber attacks.

A survey conducted by UC Berkeley’s Centre for Long-Term Cybersecurity1 highlighted emergency alert systems as particularly vulnerable within smart city infrastructure. An attack on these systems could result in widespread panic or delayed response to genuine emergencies.

Data breaches and privacy concerns:

Smart cities collect vast amounts of data on their citizens, from travel patterns to health details. The widespread use of sensors and IoT devices makes these data pools tempting targets for hackers. A successful breach could lead to identity theft, financial fraud and diminished trust in public institutions.

Water supply and sanitation threats:

Attacks targeting water supply systems are a stark reminder of the vulnerabilities within smart city infrastructure. In 2021, hackers attempted to poison the water supply in Oldsmar, Florida, by altering chemical treatment levels. Although thwarted, the incident underscored the dangers posed to critical infrastructure by cyberthreats.

Cyberthreats transcend borders

The interconnected nature of smart cities amplifies the potential impact of cyber attacks, extending beyond individual municipalities. A breach in one city could have cascading effects on neighbouring regions and even disrupt international systems.

For example, a successful attack on a city’s energy grid could affect hospitals, schools and essential services over a wide area. A breach in transportation infrastructure could delay shipments, disrupting global supply chains.

Beyond financial losses, a successful cyber attack can also erode public trust in digital infrastructure, potentially slowing the adoption of smart city technologies that are essential for achieving sustainability goals.

Preparing for tomorrow’s cybersecurity threats

Building resilient smart cities requires comprehensive cybersecurity measures that address vulnerabilities across infrastructure, data and citizen engagement. Key strategies include:

1. Adopting a ‘secure-by-design’ approach:

Cities should embrace a secure-by-design strategy, ensuring cybersecurity is integrated from the earliest stages of technology deployment. This involves rigorous risk assessments and the use of encryption, multi-factor authentication and regular software updates.

2. Cross-sector collaboration:

Protecting smart cities from cyberthreats requires collaboration between government, private sector and technology providers. By sharing threat intelligence and co-ordinating on cybersecurity protocols, public and private entities can respond swiftly to cyber incidents.

3. Investing in cybersecurity talent:

As demand for cybersecurity experts rises, cities must invest in developing a skilled workforce. Governments, educational institutions and businesses should collaborate to create training programs that equip professionals with the skills needed to protect smart city infrastructures.

4. Citizen awareness and cyber hygiene:

Engaging citizens in cybersecurity efforts is crucial for creating a safe digital environment. Public awareness campaigns can teach residents about recognising phishing attempts, securing their devices and reporting suspicious activities. Empowering citizens to practice good cyber hygiene strengthens a city’s overall security.

Building resilient smart cities

The potential of smart cities is vast, offering enhanced quality of life, greater efficiency and sustainable urban living. However, without addressing cybersecurity risks, these benefits could be undermined by significant threats.

By prioritising cybersecurity as a fundamental component of smart city development, cities worldwide can build resilient infrastructures that protect citizens, sustain public trust, and lay the groundwork for a safer, more connected future.

Les Williamson is Regional Director Australia and New Zealand at Check Point Software Technologies, a cybersecurity platform provider of AI-powered, cloud delivered solutions. He has more than three decades of sales and leadership experience in the IT industry, having previously been Head of the AWS Telecommunications Business Unit for Asia Pacific and Japan as well as Vice President for ANZ at Citrix. In addition, he worked for Cisco Systems for more than 10 years in a variety of roles, including as Vice President Asia Pacific.

1. https://cltc.berkeley.edu/wp-content/uploads/2021/03/Smart_City_Cybersecurity.pdf

Top image credit: iStock.com/gremlin

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