With at least 5.25 trillion pieces of plastic in the ocean as of 2015 and a staggering 14 million tons added every year, the world’s governments and scientists are urgently trying to find a solution. Recently, researchers have turned to microbes as a potential remedy, having discovered that bacteria like Rhodococcus ruber can digest plastic. Unfortunately, many of those microorganisms typically only operate at temperatures reaching 30 degrees Celsius (86 F) and above when bioengineered at large scale. This can make the process both costly and non-carbon neutral.
That’s why new findings in the Arctic and Alps are all the more surprising: Scientists from the Swiss Federal Institute WSL located microbes that are able to digest plastic at low temperatures. Publishing their results in Frontiers in Microbiology, researchers identified two fungal species (in the genera Neodevriesia and Lachnellula) in particular as being able to digest three different kinds of plastic.
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The discovery could be a potential game-changer in reducing plastic waste worldwide. Microbiologist Joel Rüthi, first author of the study, said in a statement, “These organisms could help to reduce the costs and environmental burden of an enzymatic recycling process for plastic.”
The team examined 34 microbes (19 strains of bacteria and 15 fungi) found in Svalbard, Greenland, and Switzerland. These microbes were found growing on free-lying plastic litter and plastic that had been intentionally buried in the ground for at least a year, as well as in the soil itself. Sampling 26 strains from the Alps and eight from the Arctic, the scientists isolated the microbes and grew single-strain cultures in the lab at 15 C under the conditions of darkness.
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The research team has identified the bacteria as belonging to 13 genera in phyla Actinobacteria and Proteobacteria. Meanwhile, they classified the fungi to 10 genera in the phyla Ascomycota and Mucoromycota. The team tested the microbes ability to break down several types of plastic: polyester-polyurethane (PUR), conventional polyethylene (PE), polybutylene adipate-co-terephthalate (PBAT), and polylactic acid (PLA).
After a 126-day period, unfortunately, none of the strains showed an ability to digest PE. However, 56% of the microbes tested were able to digest PUR. As for PBAT and PLA, 14 fungi and three strains of bacteria were able to break down the material.
“It was very surprising to us that we found that a large fraction of the tested strains was able to degrade at least one of the tested plastics,” said Rüthi.
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As mentioned above, fungal strains 800 (Neodevriesia sp.) and 943 (Lachnellula sp.) showed the most promising results from the study. In addition to being able to break down all biodegradable components, they were also able to digest pure PBAT polymer.
While the results are promising, there’s still more research and future testing to be done. For one, the research team only tested the microbes at 15 degrees Celsius, but the microbes can grow in temperatures between 4 and 20 C. Future testing could reveal what the best temperature may be.
“The next big challenge will be to identify the plastic-degrading enzymes produced by the microbial strains and to optimize the process to obtain large amounts of proteins,” said study co-author Beat Frey. “In addition, further modification of the enzymes might be needed to optimize properties such as protein stability.”
Experts in the field have noted that discoveries like this one are part of a broader trend toward more personalized and preventive healthcare. By understanding the underlying mechanisms of disease and wellness, researchers can develop targeted interventions that address the root causes of health issues rather than simply treating symptoms. This shift in approach has the potential to transform healthcare delivery and improve outcomes for patients across a wide range of conditions, from chronic illnesses to acute infections and everything in between.
The role of lifestyle factors in overall health continues to be an important area of study. Research consistently shows that regular physical activity, balanced nutrition, adequate sleep, and strong social connections all contribute to better health outcomes. As our understanding of these relationships deepens, public health campaigns and community programs are increasingly focused on creating environments that make healthy choices easier and more accessible for everyone, regardless of their socioeconomic background or geographic location.
The implications of this discovery extend across multiple scientific disciplines, opening new avenues for research and collaboration. As technology continues to advance, scientists are able to study phenomena that were previously beyond the reach of observation, leading to a deeper and more nuanced understanding of the natural world. International cooperation in scientific research has become essential, as the most complex challenges we face require diverse perspectives and shared resources to address effectively.
Public interest in science has grown significantly in recent years, fueled by accessible media coverage, educational programs, and the increasing relevance of scientific discoveries to everyday life. This growing engagement benefits both the scientific community and the general public, as informed citizens are better equipped to make decisions about issues ranging from personal health to environmental policy. Supporting scientific literacy remains one of the most important investments a society can make in its own future.
Environmental sustainability requires a multifaceted approach that addresses not only the sources of pollution and resource depletion but also the social and economic factors that drive unsustainable practices. Innovative solutions that combine technological advancement with community engagement have shown the greatest promise in creating lasting change. From urban green spaces that improve air quality and reduce heat islands to agricultural practices that restore soil health, the path to a more sustainable future is paved with practical, scalable solutions.
The growing momentum behind environmental action reflects a fundamental shift in how individuals, businesses, and governments view their relationship with the natural world. Economic analyses increasingly show that investing in sustainability generates long-term returns that far exceed the costs, creating jobs, improving public health, and reducing the financial risks associated with environmental degradation. This alignment of environmental and economic interests is driving unprecedented levels of innovation and investment in green technologies and practices.
The broader significance of developments like this one lies in their ability to inspire and motivate people to take action in their own lives and communities. Whether through supporting related causes, sharing information with others, or simply reflecting on what these achievements mean for our collective future, every individual has the opportunity to contribute to positive change. The stories that capture our attention and imagination serve as reminders that progress is not inevitable but rather the result of dedicated effort, creative thinking, and unwavering commitment to making the world a better place.
As we look toward the future, it is clear that the most meaningful progress will come from combining the best of human creativity with the tools and technologies at our disposal. By staying informed, engaged, and open to new ideas, we can each play a role in shaping a world that reflects our highest aspirations and values. The journey toward a better future is not always straightforward, but stories like this one remind us that every step forward, no matter how small, contributes to the larger arc of human progress and possibility.
