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After a pair of Islamist bombings rocked the south-central Indian city of Hyderabad in 2013, officials rushed to install 5,000 CCTV cameras to bolster security. Now there are nearly 700,000 in and around the metropolis.

The most striking symbol of the city’s rise as a surveillance hotspot is the gleaming new Command and Control Center in the posh Banjara Hills neighbourhood. The 20-story tower replaces a campus where swarms of officers already had access to 24-hour, real-time CCTV and cell phone tower data that geolocates reported crimes. The technology triggers any available camera in the area, pops up a mugshot database of criminals and can pair images with facial recognition software to scan CCTV footage for known criminals in the vicinity.

The Associated Press was given rare access to the operations earlier this year as part of an investigation into the proliferation of artificial intelligence tools used by law enforcement around the world.

Police Commissioner C V Anand said the new command centre, inaugurated in August, encourages using technologies across government departments, not just police. It cost $75 million (roughly Rs. 620 crore), according to Mahender Reddy, director general of the Telangana State Police.

Facial recognition and artificial intelligence have exploded in India in recent years, becoming key law enforcement tools for monitoring big gatherings.

Police aren’t just using technology to solve murders or catch armed robbers. Hyderabad was among the first local police forces in India to use a mobile application to dole out traffic fines and take pictures of people flaunting mask mandates. Officers also can use facial recognition software to scan pictures against a criminal database. Police officers have access to an app, called TSCOP, on their smartphones and tablets that includes facial recognition scanning capabilities. The app also connects almost all police officers in the city to a host of government and emergency services.

Anand said photos of traffic violators and mask-mandate offenders are kept only long enough to be sure they aren’t needed in court and are then expunged. He expressed surprise that any law-abiding citizen would object.

“If we need to control crime, we need to have surveillance,” he said.

But questions linger over the accuracy and a lawsuit has been filed challenging its legality. In January, a Hyderabad official scanned a female reporter’s face to show how the facial recognition app worked. Within seconds, it returned five potential matches to criminals in the statewide database. Three were men.

Hyderabad has spent hundreds of millions of dollars on patrol vehicles, CCTV cameras, facial recognition and geo-tracking applications and several hundred facial recognition cameras, among other technologies, Anand said. The investment has helped the state attract more private and foreign investment, he said, including Apple’s development centre, inaugurated in 2016; and a major Microsoft data centre announced in March.

“When these companies decide to invest in a city, they first look at the law-and-order situation,” Anand said.

He credited technology for a rapid decrease in crime. Mugging for jewellery, for example, plunged from 1,033 incidents per year to less than 50 a year after cameras and other technologies were deployed, he said.

Hyderabad’s trajectory is in line with the nation’s. The country’s National Crime Records Bureau is seeking to build what could be among the world’s largest facial recognition systems.

Building steadily on previous government efforts, Prime Minister Narendra Modi and his Bharatiya Janata Party (BJP) have seized on the rise in surveillance technology since coming to power in 2014. His flagship Digital India campaign aims to overhaul the country’s digital infrastructure to govern using information technology.

The government has promoted smart policing through drones, AI-enabled CCTV cameras and facial recognition. It’s a blueprint that has garnered support across the political spectrum and seeped into states across India, said Apar Gupta, executive director of the New Delhi-based Internet Freedom Foundation.

“There is a lot of social and civic support for it too – people don’t always fully understand,” Gupta said. “They see technology and think this is the answer.”

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Scientists Find Wastewater Bacteria That Break Down PET Plastic

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February 27, 2025

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Scientists Find Wastewater Bacteria That Break Down PET Plastic

Our environment continues to grapple with plastic pollution, with microplastics infiltrating the air, food, and water. Scientists are actively seeking methods to break down this persistent material. A new development has identified bacteria in wastewater that can degrade polyethylene terephthalate (PET), a plastic widely used in packaging and textiles. The discovery has raised hopes of reducing PET waste, which contributes significantly to microplastic contamination in water bodies. Research efforts are now focused on understanding and enhancing the plastic-degrading ability of these microbes.

Microbes Capable of Breaking Down PET Identified

According to a study published in Environmental Science and Technology, bacteria of the Comamonas genus have been found to degrade PET. Comamonas bacteria, commonly found in wastewater, were already known to grow on plastics in aquatic environments. This prompted Dr. Ludmilla Aristilde, an environmental biochemist at Northwestern University, and her team to investigate whether these microbes consume plastic as a source of energy. The study revealed that Comamonas testosteroni could break down PET, leading to the release of nano-sized plastic particles into water.

Enzyme Responsible for PET Breakdown Identified

As per reports, researchers observed the breakdown of PET after exposing it to C. testosteroni in a controlled laboratory setting for a month. Scanning electron microscope images showed that the bacteria had significantly altered the plastic’s surface, causing the release of plastic nanoparticles. Genetic analysis identified a specific enzyme responsible for breaking down PET. Further testing confirmed its role when bacteria engineered without the gene for this enzyme were unable to degrade plastic, while non-plastic-consuming bacteria equipped with the gene could digest PET.

Challenges and Future Research in Plastic Degradation

Dr. Ren Wei, a biochemist at the University of Greifswald, expressed skepticism to Science News Explore about the practical application of this discovery, stating in reports that the degradation process is too slow to significantly reduce global plastic pollution. On the contrary, Dr. Jay Mellies, a microbiologist at Reed College, viewed the findings as promising, emphasiaing that every viable method should be explored. Dr. Victor Gambarini, a microbiologist at the University of Auckland, echoed this sentiment, suggesting that further research should focus on identifying or engineering enzymes capable of degrading PET more efficiently. Efforts are now being directed toward improving the enzyme’s efficiency to make microbial plastic degradation a practical solution.

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Hubble Captures Stunning Tarantula Nebula Image, Revealing Cosmic Dust and Star Formation

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February 27, 2025

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Hubble Captures Stunning Tarantula Nebula Image, Revealing Cosmic Dust and Star Formation

A striking image of the Tarantula Nebula has been captured by the NASA/ESA Hubble Space Telescope, showcasing a vast cosmic landscape filled with swirling gas and dust. Situated around 160,000 light-years away in the Large Magellanic Cloud, this nebula is known as one of the most active star-forming regions in the universe. The image reveals intricate layers of dust clouds, with dark reddish formations that block light and dense clusters appearing nearly black. Wispy pale clouds stretch across the scene, resembling smoke curling through space, while countless stars shine in shades of blue, purple, and red, reflecting their varying depths within the nebula.

Scientific Insights into Cosmic Dust

According to reports, as part of an observing programme focused on cosmic dust properties in the Large Magellanic Cloud and nearby galaxies, the nebula’s vibrant structure is composed of gaseous clouds and dense dust formations. Unlike common household dust, cosmic dust consists of carbon-based molecules or silicates containing silicon and oxygen. These particles, though minuscule in size, play a crucial role in celestial processes.

The Role of Dust in Star Formation

Researchers have found that cosmic dust is instrumental in star and planet formation. Dust grains in protoplanetary disks around young stars gradually cluster together, forming larger bodies that eventually evolve into planets. Additionally, dust helps cool interstellar gas clouds, allowing them to condense and give rise to new stars. The presence of dust also contributes to molecular formation, serving as a medium for atoms to bond in the vast expanse of space.

A Glimpse into the Universe’s Evolution

The Tarantula Nebula continues to be a focal point for astronomers studying stellar evolution and cosmic dust dynamics. As new data emerges, scientists aim to uncover further details about the nebula’s structure and the fundamental role dust plays in shaping galaxies. Observations like these contribute to a broader understanding of the universe’s complex and ever-changing nature.

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Greenland’s Ice Sheet Approaches Dangerous Tipping Point Amid Rapid Melting

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February 27, 2025

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Greenland's Ice Sheet Approaches Dangerous Tipping Point Amid Rapid Melting

Greenland’s ice sheet is heading towards an irreversible tipping point that could lead to catastrophic consequences, as warned by climate scientists. The immense sheet has been losing ice at an unprecedented rate, with estimates indicating a loss of around 33 million tons per hour. A global temperature rise of just 2 degrees Celsius could trigger a collapse, potentially resulting in sea levels rising by approximately seven metres. This development threatens coastal communities worldwide and poses severe risks to marine ecosystems and global weather patterns.

Findings Highlight an Alarming Future

According to a study published in The Cryosphere, researchers developed a climate model to assess the ice sheet’s future under varying warming conditions. It was determined that an annual ice loss of approximately 230 gigatons would mark the threshold for irreversible decline. This volume represents a significant reduction from pre-industrial levels, suggesting that if current trends continue, Greenland’s ice sheet could reach a critical state by the end of the century.

Significance of Greenland’s Ice Sheet

The Greenland ice sheet is one of the planet’s two permanent ice masses, alongside Antarctica. Covering about 1.7 million square kilometres, it accounts for a large portion of the Earth’s freshwater reserves. Reports indicate that both Greenland and Antarctic ice sheets have collectively lost around 6.9 trillion tons of ice since 1994, a trend driven by human-induced climate change. Despite the alarming loss, experts believe immediate and drastic carbon emission reductions could slow or prevent irreversible damage.

Wider Implications of Accelerated Melting

Studies have revealed that ice loss is occurring at an accelerating pace across the globe. Between 2000 and 2019, glaciers worldwide lost an average of 294 billion tons of mass annually. This trend has significantly contributed to rising sea levels and disrupted ocean currents, with further warming expected to intensify these effects. Scientists caution that continued inaction may lead to widespread environmental and socio-economic disruptions.

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