Plastic wastes cause climate crisis to deteriorate faster

Plastic pollution is the accumulation of plastic waste in the environment, which adversely affects wildlife, habitats, and human health, with an estimated 11 million metric tons entering the ocean each year. It is a global problem driven by factors like overusing single-use plastics, improper disposal, and the slow degradation of plastic, which breaks down into persistent micro-plastics. This leads to harm to ecosystems, contributes to biodiversity loss, and poses risks to human health, with alarming predictions for future increases in plastic waste.

Plastic pollution is a global problem. Every year 19-23 million tons of plastic waste leak into aquatic ecosystems, polluting lakes, rivers and seas. The plastics life cycle is closely linked to climate change.

Plastic pollution can alter habitats and natural processes, reducing ecosystems’ ability to adapt to climate change, directly affecting millions of people’s livelihoods, food production capabilities and social well-being. 

The environmental, social, economic and health risks of plastics need to be assessed alongside other environmental stressors, like climate change, ecosystem degradation and resource use.

Innovative research is needed, say the authors, to better understand the hidden pathways through which plastics and their byproducts alter carbon flows. This knowledge could guide the next generation of eco-friendly materials, smarter product designs, and effective global regulations.

As the world wrestles with climate change, this new analysis reinforces that plastics are much more than a litter problem on beaches or city streets. Their production, use, and ultimate fate have major, complex consequences for the planet’s ability to manage carbon, one of the most vital elements on Earth. Limiting plastic pollution, the researchers conclude, is not just about cleaner environments. It is a crucial step toward a stable climate for future generations. Plastic poses risks to human health at every stage of its lifecycle. Researchers have found plastic particles throughout the human body, including in people's lungs, in breast milk and in blood. From oil extraction and plastic production to product use, recycling and disposal, harmful substances can be released and disrupt our immune and hormone systems, cause cancers or result in other health impacts. 

Governments are currently negotiating a global plastics treaty that could jumpstart this complex systems shift. Upstream policies can help to curb plastics production and demand, by avoiding unnecessary plastics or promoting longer product life-spans, and can make plastic manufacturing more circular by designing products to be reused and avoiding hazardous materials and chemicals during production. Downstream policies are also important to encourage the separate collection, sorting and recycling of plastic waste and to put in place improved waste management infrastructure that can help prevent plastics from getting into the environment.