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"During the 20 years since our first study, the amount of plastic in our oceans has increased by around 50%, only further emphasizing the pressing need for action," said one leading researcher.
Some of the key scientists who first informed the world of the potential damage being done to natural systems by microplastics are now calling for world leaders to take decisive action to curb the introduction of these polluting materials into the environment—and they hope the looming United Nations treaty process on plastics can be a key vehicle for progress.
Alongside a new scientific review published cataloging the growing body of research on microplastics—defined as plastic particles smaller than 5 millimeters and "composed of polymers together with functional additives as well as other intentionally and unintentionally added chemicals"—the international group of scientists says concerted actions must be taken, including bans on certain materials and a focus on plastic pollution mitigation that puts less emphasis on consumer habits and recycling efforts by keeping microplastics out of the supply chain "in the first place."
According to the abstract of the review, published Thursday in the journal Science:
Twenty years after the first publication using the term microplastics, we review current understanding, refine definitions and consider future prospects. Microplastics arise from multiple sources including tires, textiles, cosmetics, paint and the fragmentation of larger items. They are widely distributed throughout the natural environment with evidence of harm at multiple levels of biological organization. They are pervasive in food and drink and have been detected throughout the human body, with emerging evidence of negative effects. Environmental contamination could double by 2040 and widescale harm has been predicted. Public concern is increasing and diverse measures to address microplastics pollution are being considered in international negotiations. Clear evidence on the efficacy of potential solutions is now needed to address the issue and to minimize the risks of unintended consequences.
Professor Richard Thompson of Plymouth University, who co-authored that first scientific study and coined the term microplastics just two decades years ago, says researchers now have more than enough evidence to show world leaders that serious action must be taken to curb the use of plastics, with special attention to the minuscule and microscopic forms of the material that are increasingly being found polluting ecosystems—both on land as well as in the sea—and embedded within living organisms, including humans.
"There are still unknowns, but during the 20 years since our first study, the amount of plastic in our oceans has increased by around 50%, only further emphasizing the pressing need for action," Thompson said in a statement put out by Plymouth.
In the statement, the university noted:
Since the publication of the first study in 2004, an estimated 7,000 research studies have been conducted on microplastics, providing considerable evidence in their sources and impacts as well as potential solutions.
Microplastics have been found on every corner of the planet, in more than 1,300 aquatic and terrestrial species, in the food and drink we consume, and in multiple tissues and organs of the human body.
With emissions of microplastics to the environment estimated to be up to 40 megatons per year, a number that could double by 2040, predictions indicate the potential for widescale environmental harm moving into the next century.
The research details how microplastics demand an international response due to their transitory nature. While they enter the environment in various ways—whether from direct release as fibers into the air from textiles or dust, discharged through water systems via runoff or sewage drains, or via breakdown or fragmentation—once discarded, the study says, "microplastics can travel far from their point of entry and are not constrained by national boundaries highlighting the importance of actions at a global level."
Professor Sabine Pahl, who teaches Urban and Environmental Psychology at the University of Vienna and is an honorary professor at the University of Plymouth, said, "Plastic pollution is completely caused by human actions. That's why we need research on perceptions of risks and benefits of plastic as well as other drivers of policy support and change, integrating a social science perspective."
With the next round of talks in the UN's Plastic Pollution Treaty set for November, the researchers said the negotiations offer a "tangible opportunity" for nations to act on this issue. "In our view," they wrote, "science will be just as important guiding the way toward solutions as it has been in identifying the problems."
"Two years on from the signing of the landmark biodiversity plan, we continue to finance our own extinction, putting people and our resilience at huge risk."
Governments across the world now spend a total of $2.6 trillion per year on subsidies that harm the environment, jeopardizing global climate and biodiversity targets, according to an analysis released Tuesday.
The analysis came in an updated report from the research group Earth Track, which found that harmful fossil fuel subsidies top $1 trillion annually and harmful agricultural subsidies top $600 billion. Governments also fund pollution and destruction in sectors such as water, construction, transport, forestry, and fisheries.
The $2.6 trillion total, which the report authors said was likely an underestimate, marked an $800 billion increase—or about $500 billion in real dollars—from $1.8 trillion cited in the initial report, released in February 2022.
In December 2022, the world's nations agreed to the Kunming-Montreal Global Biodiversity Framework, a deal that included, as target 18, a commitment to identify environmentally harmful subsidies (EHS) by 2025 and reduce them by $500 billion by 2030.
"Two years on from the signing of the landmark biodiversity plan, we continue to finance our own extinction, putting people and our resilience at huge risk," Christiana Figueres, the United Nations' chief climate diplomat when the Paris agreement was signed in 2015, told The Guardian. "Estimates are higher than previously thought—with at least $2.6 trillion now funding the destruction of nature, endangering the chances of meeting our nature and climate goals."
Private interests usually benefit from the harmful subsidies. Bill McGuire, an emeritus professor of earth sciences at University College London, responded to Earth Track's findings by spelling out this out.
"Want to know how criminally insane our political-economic system is?" he wrote on social media. "We are actually paying corporations to destroy the planet."
Global spending on subsidies that harm environment rises to $2.6tn (£2tn).
Subsidies for fossil fuels, deforestation, over fishing, intensive farming, water pollution.
Companies and shareholders profit, people pick up the tab for consequences.https://t.co/g7VCeA4SLI
— Prem Sikka (@premnsikka) September 18, 2024
The report shows the massive scale of government investment in EHS across the world, with the $2.6 trillion total for 2023 amounting to about 2.5% of global gross domestic product.
Other estimates of EHS have been even higher. An International Monetary Fund working paper last year estimated that fossil fuel subsidies alone amount to $7 trillion annually. Subsidies are difficult to quantify as some are implicit, such as not applying an excise tax on fossil fuels that damage the environment.
Report co-author Doug Koplow of Earth Track told Common Dreams that the IMF paper included more externalities "rather than just fiscal subsidies," based on his recollection.
The Earth Track report found that increased global fossil fuel subsidies following the Russian invasion of Ukraine were the main reason for the $800 billion increase since the last report was written. "This example highlights the sensitivity of EHS to macroeconomic conditions," the report says.
In a statement, Koplow emphasized the importance of the cross-sectoral analysis, arguing that sectors, such as agriculture, are too often looked at in isolation. "It is the combined effect of subsidies to these sectors that compound to drive loss of nature and biodiversity resources," he wrote.
The analysis comes amid an onslaught of extreme weather this year that's been made more likely by fossil fuel-driven climate breakdown. Large-scale flooding devastated Central Europe this week, killing more than 20 people. The planet has seen record temperatures for 15 straight months.
Biodiversity loss also continues apace, with experts calling for strong action as the COP16 meeting of the United Nations Convention on Biological Diversity is set to begin in Colombia on October 21.
"These extreme weather events that used to be once in a lifetime are now an almost annual occurrence," said Janez Lenarčič.
With the Portuguese government declaring a "state of calamity" over wildfires that have killed at least seven people, and the daily lives of hundreds of thousands of people in Central and Eastern Europe upended by deadly flooding, the European Union's top crisis official said the bloc must face the reality made evident by the disasters: "This is fast becoming the norm for our shared future."
A year after Europe was found to be the world's fastest-warming continent in an analysis by the World Meteorological Organization (WMO) and the E.U.'s Copernicus Climate Change Service (C3S), crisis management commissioner Janez Lenarčič told the European Parliament on Wednesday that "the global reality of the climate breakdown has moved into the everyday lives of Europeans."
"Make no mistake. This tragedy is not an anomaly," said Lenarčič. "We face a Europe that is simultaneously flooding and burning. These extreme weather events that used to be once in a lifetime are now an almost annual occurrence."
As countries including Poland, Romania, Austria, and the Czech Republic were reeling from flooding caused by Storm Boris in recent days, more than 478 square miles in Portugal's northern region were torched by fast-moving wildfires that started over the weekend.
Dozens of homes have been destroyed by more than 100 separate wildfires as officials deployed 5,000 firefighters to try to control the blazes on Wednesday. Spain, France, and Italy—which is now also preparing for heavy rainfall like the torrential downpour that inundated Central and Eastern Europe—contributed waterbombing aircraft.
Lenarčič focused his address largely on the need to ramp up disaster preparedness, noting that the rise in costs for repairing infrastructure destroyed by storms and fires has ballooned in recent decades.
"The average cost of disasters in the 1980s was 8 billion euros per year," said Lenarčič. "Meanwhile in 2022 alone, the damages surpassed 50 billion euros per year... The cost of inaction is far greater than the cost of action."
Lenarčič called on the European Commission to work closely with E.U. member states to implement the bloc's Floods Directive and a robust water resilience strategy to tackle catastrophic flooding and water shortages.
"Such challenges cannot be tackled solely through the limited portfolio of civil protection," the commissioner said.
The Left in the European Parliament, a coalition of progressive parties, echoed Lenarčič's call to strengthen civil protection, but also emphasized the need to tackle "climate change and its impacts."
Progressives in Parliament have pushed member states to meet the goals set by the European Green Deal, a set of climate policies aimed at ensuring net-zero fossil fuel emissions by 2050 and slashing emissions by at least 55% by 2030.
"Our success will depend on how determined we are to combat climate change together in order to reduce emissions," said Terry Reintke, a German lawmaker who is co-president of the Greens/European Free Alliance (EFA) group in the European Parliament.
With right-wing parties making significant gains in the bloc's parliamentary elections in June, analysts have said passing ambitious climate policies and targets will be more difficult.
Following the implementation of parts of the Green Deal, emissions are down by nearly a third from 1990 across the bloc, and member states are building wind and solar infrastructure. But right-wing leaders have pushed to block a ban on new gas- and diesel-powered cars that was set to take effect in 2035.
Far-right Italian Prime Minister Giorgia Meloni said in June that the proposed ban "was an ideological folly, which absolutely must be corrected."
On Wednesday, Italy's civil protection service issued 50 yellow alerts for the Emilia-Romagna and Marche regions, warning that the areas would face the risk of landslides and flooding as they are expected to see the equivalent of two months of rainfall in the next three days.
The heavy rains have moved across Central Europe from parts of the Czech Republic, Austria, Romania, and other countries, with at least 21 people killed by flooding.
"The E.U. must do everything in its power to help those affected by the devastating floods in many different E.U. countries," said the Greens/EFA. "These floods show that more than ever our fight against climate change is a common social and economic challenge we must tackle together."