Turn family time into eco-adventures! Learn how storytelling with Arcandina inspires kids to protect water and the planet—creating lasting environmental awareness through fun, creativity, and hero-filled stories.
23 April 2026 · Thursday · 15:00 UTC
Links:
📖 Read the Blog
🎥 Watch on YouTube
🎧 Listen as a Podcast
For 16+ years, Dr. Anshu Chandra has volunteered worldwide delivering eye care to underserved communities. In rural Haiti, she founded a clinic that has provided 120,000+ free exams and restored sight for thousands—now at risk. Hear her story and the urgent call to secure its future. 👁️🌍
7 May 2026 · Thursday · 15:00 UTC
Links:
🎥 Watch on YouTube: Link
🎧 Listen as a Podcast: Link
📖 Read the Blog: Link
🌱 Learn more
Please contact info@earthnetworkrotary.org to learn how your club or organization can help, support, and give.
Microplastics are more than pollution—they may be fueling antibiotic resistance. New science shows how local action can help protect global ocean health.
Plastic pollution is often framed as a visible problem—bottles on beaches, bags in the tide. But beneath the surface lies a far more complex and concerning story. Tiny fragments known as microplastics are not just environmental debris; they are active ecosystems, capable of hosting harmful and drug-resistant microbes.
In her Earth Talk, marine microbiologist Dr. Emily May Stevenson connects the dots between plastic pollution, ocean health, and antimicrobial resistance (AMR)—one of the most urgent global health challenges of our time. Her message is both sobering and hopeful: while the problem is vast and largely invisible, solutions can begin with everyday actions taken at the local level.
Microplastics—particles smaller than five millimeters—are now found in oceans, rivers, soil, and even the air we breathe. They originate from broken-down larger plastics and from products designed to shed small particles, such as synthetic clothing.
What makes microplastics especially concerning is not just their size, but their function. According to Dr. Stevenson, these particles act as “floating habitats” for microbial life.
“Plastics are not inert,” she explains. “They provide surfaces where microbes can attach, grow, and interact in ways they wouldn’t otherwise.”
These microbial communities, known as biofilms, can include bacteria that are harmful to humans, animals, and ecosystems.
One of the most alarming findings from Dr. Stevenson’s research is the connection between microplastics and antimicrobial resistance (AMR). AMR occurs when bacteria evolve to survive antibiotics, making infections harder—or sometimes impossible—to treat.
Microplastics appear to accelerate this process.
“They bring together different species of bacteria in close proximity,” says Stevenson. “That creates ideal conditions for sharing resistance genes.”
In other words, microplastics may act as meeting points where bacteria exchange genetic material, including the traits that make them resistant to antibiotics. This raises concerns not only for ocean ecosystems, but for human health as well.
Dr. Stevenson’s work has shown that even plastics used intentionally in systems like wastewater treatment—known as bio-media—can host diverse and potentially dangerous microbial communities.
The journey of microplastics often begins far from the ocean. Wastewater systems, urban runoff, and industrial processes all contribute to their spread.
While treatment plants remove many pollutants, microplastics can slip through—and sometimes even play a role within the system itself. Once released, they travel through rivers and estuaries, eventually reaching the sea.
There, they interact with marine life at every level of the food chain.
Small organisms ingest them first, followed by larger predators. Over time, these particles—and the microbes they carry—can move through entire ecosystems.
“This is not just an ocean issue,” Stevenson emphasizes. “It’s a whole-system issue that connects land, water, wildlife, and people.”
Despite the global scale of the problem, Dr. Stevenson is clear: meaningful change often starts locally.
Through her work with Beach Guardian, she has led community-driven conservation efforts that demonstrate the impact of grassroots action. Beach cleans, citizen science projects, and public education campaigns all play a role
“Every piece of plastic removed from the environment is one less surface for harmful microbes,” she notes.
Local efforts also build awareness and shift behavior. When people see the problem firsthand—on their own beaches or in their own waterways—it becomes more tangible and urgent.
Importantly, these actions can ripple outward, influencing policy and industry practices over time.
Addressing plastic pollution and AMR requires collaboration across disciplines and sectors. Dr. Stevenson’s work at the science-policy interface highlights the importance of translating research into action.
Her involvement in evaluating antimicrobial resistance legislation and contributing to international discussions underscores a key point: science alone is not enough.
“We need joined-up thinking,” she says. “Environmental health, human health, and policy must work together.”
This “One Health” approach recognizes that the health of people, animals, and ecosystems are deeply interconnected. Plastic pollution—and its role in spreading resistant microbes—is a clear example of this interdependence.
While the science may seem complex, the actions individuals and communities can take are straightforward—and powerful.
Reducing plastic use is a critical first step. Choosing reusable items, avoiding single-use plastics, and supporting products with minimal packaging all help limit the amount of plastic entering the environment.
Equally important is proper disposal. Ensuring waste is correctly sorted and recycled reduces the likelihood of plastics breaking down into microplastics in natural settings.
Community involvement amplifies impact. Participating in local clean-ups, supporting environmental organizations, or contributing to citizen science projects can drive both immediate and long-term change.
On a broader level, advocacy matters. Supporting policies that reduce plastic production, improve waste management, and address antimicrobial resistance can help tackle the issue at its source.
Dr. Stevenson’s message is ultimately one of empowerment. While microplastics and AMR are global challenges, they are not beyond our influence.
“Small actions, multiplied across communities, can lead to meaningful change,” she says.
The path forward lies in connecting science with everyday choices—turning awareness into action, and local efforts into global solutions.
Speaker: Dr. Emily May Stevenson
Marine microbiologist specializing in plastic pollution, environmental bacteria, and antimicrobial resistance. She completed her PhD with the University of Exeter and Plymouth Marine Laboratory and is currently a postdoctoral research fellow at the University of Queensland. She is also co-founder and director of Beach Guardian.
Date Presented: 2025
Links:
🎥 Watch on YouTube
🎧 Listen as a Podcast
📖 Read the Blog
🌱 Learn more at beachguardian.org
Pollinators are vanishing—but solutions are growing. From restoring habitats and prison beekeeping programs to creating fast-growing Miyawaki micro-forests, this initiative boosts biodiversity, captures carbon, and transforms lives and urban spaces.
16 April 2026 · Thursday · 15:00 UTC
Links:
📖 Read the Blog
🎥 Watch on YouTube
🎧 Listen as a Podcast
Germany’s Green Belt turns a former border into a 1,300 km haven for wildlife. Rotary’s marsh initiative restores wetlands, boosting biodiversity and climate resilience—transforming past divides into thriving ecosystems.
9 April 2026 · Thursday · 15:00 UTC
Links:
📖 Read the Blog
🎥 Watch on YouTube
🎧 Listen as a Podcast
From beach cleanups to the invisible world of microbes, discover how plastics become habitats for bacteria in the “plastisphere.” This talk reveals the hidden link between microplastics, antimicrobial resistance, and ocean health—and how local action can drive global solutions. 🌊
2 April 2026 · Thursday · 15:00 UTC
Links:
📖 Read the Blog
🎥 Watch on YouTube
🎧 Listen as a Podcast
Where your money sits matters more than most people realize. Banks quietly shape the economy—and the climate—through every loan they make.
Most people think of banks as neutral institutions—places to store money, pay bills, or get a loan. But behind the scenes, banks play a far more powerful role: they play a role in where money flows in the economy
In a recent Earth Talk, Ivan Frishberg, Chief Sustainability Officer at Amalgamated Bank, pulled back the curtain on how banking really works—and why aligning your finances with your values is one of the most overlooked tools for climate action. His message was clear: your bank is using your money. The question is—what for?
Banks are often seen as passive financial intermediaries. In reality, they are active decision-makers. When you deposit money, the bank doesn’t simply store it—it lends it out to businesses, developers, and projects.
As Frishberg explains, “where that money goes is really the primary impact.”
This means your savings could be funding industries that are important to you like alternative energy, affordable housing, and community businesses.
The system is simple: banks take deposits, lend money at higher rates, and profit from the difference. But the consequences of those lending decisions ripple across society and the environment.
Frishberg describes two key ways banks influence the world:
The first is direct and measurable: loans, investments, and financial products shape real-world outcomes. The second is more subtle but equally powerful. Financial institutions carry weight in political and regulatory conversations.
Frishberg recalls that after joining a bank, his influence in policy discussions increased dramatically—not because his expertise changed, but because his institutional affiliation did. “It matters what banks say,” he noted.
Together, these levers make banks one of the most influential—and underappreciated—actors in climate action.
One of the biggest challenges in aligning finance with climate goals is measurement. How do you calculate the climate impact of a loan or investment?
To solve this, Frishberg helped lead the development of the Partnership for Carbon Accounting Financials (PCAF), a global standard that allows financial institutions to measure the greenhouse gas emissions linked to their portfolios.
Today, institutions representing over $100 trillion in assets use this framework.
This shift is significant. It turns abstract financial activity into measurable climate impact—and creates accountability.
Banks can now:
It’s a critical step toward aligning the financial system with global climate goals.
If values-based banking is so impactful, why don’t all banks adopt it?
The answer lies in how the system is structured.
Large banks are designed for scale and profitability. They spread risk across massive portfolios and tend to finance “everything” because diversification reduces risk and maximizes returns.
Frishberg describes this as a kind of “Swiss” neutrality: banks avoid making moral judgments about clients or industries.
But that neutrality comes at a cost. It makes it difficult for large institutions to say no to exposures that come with long-term or systemic risks.
In contrast, smaller or mission-driven banks often focus on specific sectors—like community development, clean energy, or social equity—and align lending with both financial and social impact.
Values-based banks flip the traditional model. Instead of prioritizing growth and neutrality, they prioritize impact.
At Amalgamated Bank, nearly 40% of lending is focused on climate solutions, and over a quarter of loans support low-income or disadvantaged communities.
These institutions often:
They are also part of global networks like the Global Alliance for Banking on Values, which promotes “triple bottom line” banking—people, planet, and profit.
Importantly, values-based banking doesn’t reject profitability. Instead, it redefines success to include long-term social and environmental outcomes.
For individuals and organizations, the implications are both simple and powerful: your money is already shaping the world—you just may not see how.
When you deposit funds in a bank, that money becomes part of the bank’s lending pool. From an accounting perspective, it’s a liability—something the bank owes you—but in practice, it’s also a tool the bank uses to generate impact.
That means you have agency.
Here are practical steps to act on that insight:
As Frishberg emphasizes, financial decisions are part of change-making. Aligning your money with your values isn’t just symbolic—it’s structural.
Speaker: Ivan Frishberg
Chief Sustainability Officer at Amalgamated Bank, Ivan leads ESG strategy, corporate responsibility, and climate-focused financial initiatives. He also chairs the Partnership for Carbon Accounting Financials.
Date Presented: March 2026
🎥 Watch on YouTube
🎧 Listen as a Podcast
📖 Read the Blog
🌱 Learn more / Project links: Bank.green, Global Alliance for Banking on Values, B Corp, Partnership for Carbon Accounting Financials.
Can we turn farm waste into clean energy for rural communities? Listen to how Mariana Rojas, a Costa Rican engineering student, is transforming organic waste into practical climate solutions.
In rural communities around the world, two challenges often coexist: limited access to reliable energy and an abundance of organic waste. What if one could solve the other?
That’s the question driving Mariana Rojas, a materials engineering student in Costa Rica, whose work focuses on converting agricultural waste into clean energy through biogas and green hydrogen. Her approach is simple, practical, and deeply rooted in local realities—offering a model that could scale far beyond her country.
Rojas begins with a striking insight: waste is not just a problem—it’s a missed opportunity.
On a typical farm, animal manure is produced daily in large quantities. Left unmanaged, it releases methane, a greenhouse gas far more potent than carbon dioxide. Yet that same waste holds significant energy potential.
“A single cow can generate enough waste to help cover a household’s daily energy needs,” Rojas explained during her Earth Talks presentation.
This creates a paradox: rural farms often struggle with energy access while simultaneously producing the raw materials needed to generate it.
At the heart of Rojas’s solution is a biodigester—a sealed system where microorganisms break down organic waste in the absence of oxygen, a process known as anaerobic digestion.
The result is biogas, primarily composed of methane, which can be used as fuel. At the same time, a nutrient-rich byproduct called digestate can be used as organic fertilizer.
This creates a circular system:
Unlike solar or wind energy, this system is not weather-dependent. As long as farms produce waste, they produce energy.
Rather than stopping at biogas, Rojas pushes the concept further.
After purification, methane from biogas can be converted into hydrogen through a process known as reforming. When the source is organic waste, the result is considered green hydrogen—a cleaner alternative to fossil fuel-derived hydrogen.
This step increases the versatility of the system. Hydrogen can be used for:
By adding this layer, the project transforms a basic waste solution into a forward-looking energy platform.
A key strength of Rojas’s approach is its scale.
Rather than targeting massive industrial farms, the system is designed for small and medium-sized operations—common in countries like Costa Rica. In pilot projects, even a handful of animals can produce enough waste to power parts of a home or farm operation.
This decentralized model offers several advantages:
As Rojas noted, “This is about using local resources to solve local challenges.”
The system is not without challenges.
Initial investment costs can be significant, especially for biodigesters and hydrogen conversion systems. Proper training is also essential to manage gas handling and system efficiency.
There are also broader considerations:
Still, these challenges are manageable with good design, education, and policy support. And at smaller scales, many risks are reduced.
Rojas’s work offers a compelling blueprint for sustainable development—particularly in rural and underserved regions.
What makes this model powerful is its integration:
For communities without grid access, this can be transformative. In Costa Rica alone, thousands of households still lack reliable electricity despite the country’s strong renewable energy profile.
Scaling this solution will require collaboration:
The model is also adaptable beyond Costa Rica—to agricultural regions across Latin America, Africa, and Asia.
Ultimately, this is not just about energy. It’s about empowerment—giving communities the tools to turn everyday waste into opportunity.
Speaker: Mariana Rojas
Materials Engineering student at the Technological Institute of Costa Rica, focused on biomaterials, clean energy, and rural innovation. She also mentors young women in STEM.
Date Presented: 19 March 2026
🎥 Watch on YouTube
🎧 Listen as a Podcast
📖 Read the Blog
🌱 Learn more / Project links: [Link]
Discover how agricultural waste can power a clean energy revolution! This talk showcases biogas and green hydrogen solutions turning livestock residues into reliable electricity, boosting rural development, energy independence, and a low-carbon future.
19 March 2026 · Thursday · 15:00 UTC
Links:
📖 Read the Blog
🎥 Watch on YouTube
🎧 Listen as a Podcast