Ocean warming study so distressing, some scientists didn’t even want to talk about it

Ship in the ocean, Hamburg, Germany. Photo by Martin Damboldt from Pexels.
Ship in the ocean, Hamburg, Germany. Photo by Martin Damboldt from Pexels.

“This is one of those ‘sit up and read very carefully’ moments,” said one science journalist.

By Julia Conley, Common Dreams

Scientists are so alarmed by a new study on ocean warming that some declined to speak about it on the record, the BBC reported Tuesday.

“One spoke of being ‘extremely worried and completely stressed,'” the outlet reported regarding a scientist who was approached about research published in the journal Earth System Science Data on April 17, as the study warned that the ocean is heating up more rapidly than experts previously realized—posing a greater risk for sea-level rise, extreme weather, and the loss of marine ecosystems.

Scientists from institutions including Mercator Ocean International in France, Scripps Institution of Oceanography in the United States, and Royal Netherlands Institute for Sea Research collaborated to discover that as the planet has accumulated as much heat in the past 15 years as it did in the previous 45 years, the majority of the excess heat has been absorbed by the oceans.

In March, researchers examining the ocean off the east coast of North America found that the water’s surface was 13.8°C, or 24.8°F, hotter than the average temperature between 1981 and 2011.

The study notes that a rapid drop in shipping-related pollution could be behind some of the most recent warming, since fuel regulations introduced in 2020 by the International Maritime Organization reduced the heat-reflecting aerosol particles in the atmosphere and caused the ocean to absorb more energy.

But that doesn’t account for the average global ocean surface temperature rising by 0.9°C from preindustrial levels, with 0.6°C taking place in the last four decades.

The study represents “one of those ‘sit up and read very carefully’ moments,” said former BBC science editor David Shukman.

Lead study author Karina Von Schuckmann of Mercator Ocean International told the BBC that “it’s not yet well established, why such a rapid change, and such a huge change is happening.”

“We have doubled the heat in the climate system the last 15 years, I don’t want to say this is climate change, or natural variability or a mixture of both, we don’t know yet,” she said. “But we do see this change.”

Scientists have consistently warned that the continued burning of fossil fuels by humans is heating the planet, including the oceans. Hotter oceans could lead to further glacial melting—in turn weakening ocean currents that carry warm water across the globe and support the global food chain—as well as intensified hurricanes and tropical storms, ocean acidification, and rising sea levels due to thermal expansion.

A study published earlier this year also found that rising ocean temperatures combined with high levels of salinity lead to the “stratification” of the oceans, and in turn, a loss of oxygen in the water.

“Deoxygenation itself is a nightmare for not only marine life and ecosystems but also for humans and our terrestrial ecosystems,” researchers from the Chinese Academy of Sciences, the National Center for Atmospheric Research, and the National Oceanic and Atmospheric Administration said in January. “Reducing oceanic diversity and displacing important species can wreak havoc on fishing-dependent communities and their economies, and this can have a ripple effect on the way most people are able to interact with their environment.”

The unusual warming trend over recent years has been detected as a strong El Niño Southern Oscillation (ENSO) is expected to form in the coming months—a naturally occurring phenomenon that warms oceans and will reverse the cooling impact of La Niña, which has been in effect for the past three years.

“If a new El Niño comes on top of it, we will probably have additional global warming of 0.2-0.25°C,” Dr. Josef Ludescher of the Potsdam Institute for Climate Research told the BBC.

The world’s oceans are a crucial tool in moderating the climate, as they absorb heat trapped in the atmosphere by greenhouse gases.

Too much warming has led to concerns among scientists that “as more heat goes into the ocean, the waters may be less able to store excess energy,” the BBC reported.

The anxiety of climate experts regarding the new findings, said the global climate action movement Extinction Rebellion, drives home the point that “scientists are just people with lives and families who’ve learnt to understand the implications of data better.”

‘The biggest conservation victory ever!’ Global treaty to protect oceans reached

Photo of coral reef by Jimmy Chang on Unsplash.
Photo of a coral reef by Jimmy Chang on Unsplash.

“This is a historic day for conservation and a sign that in a divided world, protecting nature and people can triumph over geopolitics,” said Greenpeace in response to an agreement to protect world’s marine biodiversity.

By Jon Queally, Common Dreams

Ocean conservationists expressed elation late Saturday after it was announced—following nearly two decades of consideration and effort—that delegates from around the world had agreed to language for a far-reaching global treaty aimed at protecting the biodiversity on the high seas and in the deep oceans of the world.

“This is a historic day for conservation and a sign that in a divided world, protecting nature and people can triumph over geopolitics,” declared Dr. Laura Meller, the oceans campaigner for Greenpeace Nordic.

“We praise countries for seeking compromises, putting aside differences, and delivering a Treaty that will let us protect the oceans, build our resilience to climate change and safeguard the lives and livelihoods of billions of people,” Meller added.

The final text of the Global Ocean Treaty, formally referred to as the Biodiversity Beyond National Jurisdiction treaty (BBNJ), was reached after a two-week round of talks that concluded with a 48-hour marathon push between delegations at the United Nations headquarters in New York.

“This is huge,” said Greenpeace in a social media post, calling the agreement “the biggest conservation victory ever!”

Rena Lee of Singapore, the U.N Ambassador for Oceans and president of the conference hosting the talks, received a standing ovation after announcing a final deal had been reached. “The shipped has reached the shore,” Lee told the conference.

“Following a two-week-long rollercoaster ride of negotiations and super-hero efforts in the last 48 hours, governments reached agreement on key issues that will advance protection and better management of marine biodiversity in the High Seas,” said Rebecca Hubbard, director of the High Seas Alliance, a coalition of over 40 ocean-focused NGOs that also includes the International Union for the Conservation of Nature (IUCN).

Minna Epps, director of the Global Marine and Polar Programme at the IUCN, said the agreement represents a new opportunity.

“The High Seas Treaty opens the path for humankind to finally provide protection to marine life across our one ocean,” Epps said in a statement. “Its adoption closes essential gaps in international law and offers a framework for governments to work together to protect global ocean health, climate resilience, and the socioeconomic wellbeing and food security of billions of people.”

Protecting the world’s high seas, which refers to areas of the oceans outside the jurisdiction of any country, is part of the larger push to protect planetary biodiversity and seen as key if nations want to keep their commitment to the UN-brokered Kunming-Montreal Global Biodiversity Framework—also known as the known as the 30×30 pledge—that aims protect 30 percent of the world’s natural habitat by 2030.

“With currently just over 1% of the High Seas protected,” said the High Seas Alliance in a statement, “the new Treaty will provide a pathway to establish marine protected areas in these waters.” The group said the treaty will make acheiving the goals of the Kunming-Montreal agreement possible, but that “time is of the essence” for the world’s biodiversity.

“The new Treaty will bring ocean governance into the 21st century,” said the group, “including establishing modern requirements to assess and manage planned human activities that would affect marine life in the High Seas as well as ensuring greater transparency. This will greatly strengthen the effective area-based management of fishing, shipping, and other activities that have contributed to the overall decline in ocean health.”

According to Greenpeace’s assessment of the talks:

The High Ambition Coalition, which includes the EU, US and UK, and China were key players in brokering the deal. Both showed willingness to compromise in the final days of talks, and built coalitions instead of sowing division. Small Island States have shown leadership throughout the process, and the G77 group led the way in ensuring the Treaty can be put into practice in a fair and equitable way.

The fair sharing of monetary benefits from Marine Genetic Resources was a key sticking point. This was only resolved on the final day of talks. The section of the Treaty on Marine Protected Areas does away with broken consensus-based decision making which has failed to protect the oceans through existing regional bodies like the Antarctic Ocean Commission. While there are still major issues in the text, it is a workable Treaty that is a starting point for protecting 30% of the world’s oceans.

The group said it is now urgent for governments around the world to take the final step of ratifying the treaty.

“We can now finally move from talk to real change at sea. Countries must formally adopt the Treaty and ratify it as quickly as possible to bring it into force, and then deliver the fully protected ocean sanctuaries our planet needs,” Meller said. “The clock is still ticking to deliver 30×30. We have half a decade left, and we can’t be complacent.”

Pesticide use and climate crisis locked in ‘vicious cycle’ backed by polluting industries

Tractor spraying on crops. Photo by Ferencz Istvan, Pexels.
Tractor spraying on crops. Photo by Ferencz Istvan, Pexels.

While agrochemical corporations promote “flawed solutions,” said one advocate, “we need deeper, transformative approaches to actually solve the root problems of our broken food system.”

By Kenny Stancil, Common Dreams

Even though synthetic pesticides—the majority of which are derived from fossil fuels—contribute significantly to planet-heating pollution and increase the vulnerability of food systems, industrial agriculture interests continue to recklessly portray further pesticide use as a sensible response to the climate emergency’s worsening impacts.

That’s according to a recent report published by the Pesticide Action Network North America (PANNA), which details how agrochemical corporations exacerbate the climate crisis by refusing to admit that pesticides are part of the problem and instead promoting “false” solutions that enable them to keep peddling their highly profitable petroleum-based products.

The January report outlines how policymakers can help mitigate the climate crisis and build just and sustainable food systems by setting targets to drastically curb pesticide use, supporting agroecological farming practices, and protecting the rights of low-income individuals, disproportionately people of color, who are most harmed by pesticides, including farmworkers and residents of areas where the toxic substances are produced and applied.

“Governments are investing billions of dollars to address climate change, but these investments will fall woefully short unless they incorporate pesticide use reduction strategies and promotion of agroecological growing practices.”

“Reductions in pesticide use and the adoption of agroecology would decrease greenhouse gas emissions, while also reducing acute poisonings, long-term diseases like cancer, and other health impacts that rural communities face from pesticide exposure,” Nayamin Martinez, executive director of Central California Environmental Justice Network, said in a statement.

As the report explains: “Pesticides contribute to climate change throughout their lifecycle via manufacturing, packaging, transportation, application, and even through environmental degradation and disposal. Importantly, 99% of all synthetic chemicals—including pesticides—are derived from fossil fuels, and several oil and gas companies play major roles in developing pesticide ingredients.”

Pesticides, the offspring of a World War II-era marriage of Big Ag and Big Oil, help drive global warming to a greater extent than many realize, as the authors document:

Other chemical inputs in agriculture, such as nitrogen fertilizer, have rightly received significant attention due to their contributions to greenhouse gas emissions. Yet research has shown that the manufacture of one kilogram of pesticide requires, on average, about 10 times more energy than one kilogram of nitrogen fertilizer. Like nitrogen fertilizers, pesticides can also release greenhouse gas emissions after their application, with fumigant pesticides shown to increase nitrous oxide production in soils seven- to eight-fold. Many pesticides also lead to the production of ground-level ozone, a greenhouse gas harmful to both humans and plants. Some pesticides, such as sulfuryl fluoride, are themselves powerful greenhouse gases, having nearly 5,000 times the potency of carbon dioxide.

Despite mounting evidence that pesticides are helping to accelerate planetary heating, “climate change impacts are expected to lead to increases in pesticide use, creating a vicious cycle between chemical dependency and intensifying climate change,” the report notes. “Research shows that declining efficacy of pesticides, coupled with increases in pest pressures associated with a changing climate, will likely increase synthetic pesticide use in conventional agriculture. An increase in pesticide use will lead to greater resistance to herbicides and insecticides in weeds and insect pests, while also harming public health and the environment.”

That agricultural production is a substantial contributor to greenhouse gas (GHG) pollution is increasingly acknowledged, but the role played by pesticides is “infrequently addressed” and “many proposed solutions would not result in meaningful GHG emission reductions,” says the report.

It continues:

An example of a false solution is precision agriculture, which promises to reduce the use of petroleum-derived pesticides and fertilizers by using computer-aided technologies to more accurately determine need (pest presence) and then more accurately apply pesticides to intended targets. However, precision agriculture maintains a system dependent upon chemical- and energy-intensive technologies and materials, while diverting attention from and investment in more effective climate-friendly strategies in agriculture that have additional social and public health co-benefits, such as agroecology. Precision agriculture also increases the power and control of agrochemical companies, many of which own the precision agriculture platforms and the data inputted by farmers.

Another flawed solution, carbon markets, allows agribusinesses or farmers to sell carbon credits to corporations to “offset” continued greenhouse gas emissions—perpetuating reliance on fossil fuels. Carbon markets have a poor track record in terms of long-term climate mitigation, and have been shown to worsen economic and racial disparities.

Co-author Asha Sharma, organizing co-director at PANNA, said that “our new report reveals how oil and gas companies and pesticide manufacturers have followed a similar playbook—strategically promoting flawed solutions to the climate crisis, like carbon capture and storage and new digital agriculture tools, which in reality offer minimal climate benefits.”

“Corporations tout these novel technologies to protect their reputation, while they continue to profit from fossil fuels,” said Sharma. “We need deeper, transformative approaches to actually solve the root problems of our broken food system.”

The report makes the case for agroecology, which it defines as “a way of farming rooted in social justice that focuses on working with nature rather than against it.”

Agroecology “relies on ecological principles for pest management, minimizing the use of synthetic pesticides, while prioritizing the decision-making power of farmers and agricultural workers,” the report notes, adding that such an approach improves “the resilience of our agricultural systems to better withstand climate change impacts.”

The report makes three key recommendations for policymakers:

  • Establish measurable goals in climate policies to reduce synthetic pesticide use in agriculture;
  • Promote the transition to biodiverse, agroecological food and farming systems, such as by establishing and funding programs that provide increased technical assistance and incentives to farmers to adopt or continue these farming practices; and
  • In line with international law, adopt regulations that uphold and promote the rights of groups most impacted by synthetic pesticide use.

“Transitioning our agricultural systems to those that uplift ecological and social justice principles will not only help mitigate climate change, but also reduce the negative health impacts of industrial agriculture,” says the report. “While the work toward future policy and practice change continues, we can collectively support the advocacy work of impacted communities and organizations fighting for more equitable and sustainable food and farming systems right now.”

Co-author Margaret Reeves, a senior scientist at PANNA, argued that “governments are investing billions of dollars to address climate change, but these investments will fall woefully short unless they incorporate pesticide use reduction strategies and promotion of agroecological growing practices.”