Polar Horizon

28/05/2026

We continue the serie "Do you know what is the EARTH CARBON PUMP?"
The Earth carbon pump refers to the natural processes that move carbon between the atmosphere, oceans, land, and living organisms. These processes help regulate Earth’s climate by controlling how much carbon dioxide (CO₂) stays in the atmosphere.

After talking about "The Biological Carbon Pump (Ocean Life)" we now introduce "The Solubility Pump (Cold Ocean Water)"

This pump depends on temperature and ocean circulation.
How it works
Cold water dissolves more CO₂ than warm water.
Near the poles, cold dense water sinks and carries dissolved carbon into the deep ocean.
Ocean currents slowly circulate this carbon-rich water around the globe.

22/05/2026

Do you know what is the EARTH CARBON PUMP?
The Earth carbon pump refers to the natural processes that move carbon between the atmosphere, oceans, land, and living organisms. These processes help regulate Earth’s climate by controlling how much carbon dioxide (CO₂) stays in the atmosphere.

There are three major carbon pumps:
- The Biological Carbon Pump (Ocean Life)
- The Solubility Pump (Cold Ocean Water)
- The Terrestrial Carbon Pump (Land Ecosystems)

We start today with The Biological Carbon Pump (Ocean Life):
This is driven by marine organisms.

How it works
- Tiny ocean plants called phytoplankton absorb CO₂ during photosynthesis.
Small animals eat the phytoplankton.
- When organisms die or produce waste, some carbon sinks into the deep ocean as “marine snow.”
- Deep ocean waters can store that carbon for centuries to thousands of years.
Why it matters
Oceans absorb roughly a quarter of human CO₂ emissions.
This pump slows global warming by removing atmospheric carbon.
Carbon is biologically captured near the surface and physically transported downward.

We will talk about the other two carbon pumps in the next posts....stay tuned!

15/05/2026

Understanding Arctic Amplification: why the Arctic is warming faster than the rest of the planet

The Arctic is heating up nearly 4 times faster than the global average. This phenomenon is known as Arctic Amplification.
At the core of this process is a powerful feedback loop:
- Sea ice and snow normally reflect sunlight back into space
- As temperatures rise, ice melts and exposes darker ocean and land surfaces
- These darker surfaces absorb more solar energy, causing even more warming and further ice loss
This is not just a regional issue. What happens in the Arctic affects the entire climate system.

Why does it matter?
- It accelerates global sea level rise through the melting of Greenland’s ice sheet
- It influences atmospheric circulation and can alter weather patterns across Europe, North America, and Asia
- It contributes to permafrost thaw, potentially releasing large amounts of methane and CO₂
- It disrupts ecosystems and communities that depend on Arctic stability

The Arctic acts as one of Earth’s key climate regulators. Its rapid transformation is a signal of how interconnected and sensitive our planet’s systems truly are.
Understanding Arctic Amplification is essential not only for climate science, but also for energy policy, infrastructure planning, risk management, and global resilience.

08/05/2026

Today marks a significant milestone as we celebrate 100 years of a true legend David Attenborough. For a century, he has illuminated the beauty, wonder, and fragility of life on Earth. Through his voice, generations have learned to appreciate nature not as something distant, but as something deeply connected to all of us.

Thank you for the stories, the curiosity, and the lifelong reminder to protect this extraordinary planet we share.

Happy 100th birthday, Sir David Attenborough

28/04/2026

The water cycle (also known as the hydrologic cycle) is the continuous movement of water within the Earth and its atmosphere. It’s a natural recycling system that ensures water is constantly being purified, redistributed, and reused across the planet.

Main Stages of the Water Cycle
Ev***ration : When the sun heats oceans, lakes, and rivers, liquid water transforms into water v***r and rises into the atmosphere. Plants also release water v***r through a process called transpiration.
Condensation :As water v***r rises, it cools and changes back into tiny droplets, forming clouds. This stage is responsible for cloud formation in the atmosphere.
Precipitation :When water droplets in clouds grow large and heavy, they fall back to Earth as rain, snow, sleet, or hail.
Collection (Accumulation) : Water gathers in oceans, lakes, rivers, and underground reservoirs. From here, it can either re-enter the cycle through ev***ration or seep into the ground.
Infiltration & Groundwater Flow : Some water soaks into the soil, replenishing groundwater supplies. This underground water can eventually flow back into rivers and oceans.

Why the Water Cycle Is Essential
Sustains Life : All living organisms depend on water. The cycle ensures a constant supply of fresh water for drinking, agriculture, and ecosystems.
Regulates Climate : The movement of water between the surface and atmosphere helps regulate Earth’s temperature and weather patterns.
Purifies Water Naturally : As water ev***rates, impurities are left behind. This natural purification process helps maintain clean water sources.
Supports Ecosystems : Rivers, lakes, forests, and oceans rely on the water cycle to maintain balance and biodiversity.
Shapes the Earth : Processes like rainfall and runoff contribute to erosion and the formation of landscapes over time.

Human Impact on the Water Cycle
Human activities are altering this delicate system:
Deforestation reduces transpiration
Urbanization limits water infiltration into the ground
Climate change intensifies ev***ration and alters precipitation patterns
Pollution contaminates water sources
These changes can lead to droughts, floods, and water scarcity.

The water cycle is a powerful reminder that Earth operates as a connected system. Every drop of water you use today may have existed for millions of years. Protecting this cycle means protecting life itself.

24/04/2026

Happy Antarctic Ambassadorship Day!
Today, on Antarctic Ambassadorship Day, we celebrate the people and initiatives dedicated to protecting one of the most fragile and awe-inspiring regions on Earth.
At Polar Horizon, our mission is rooted in the belief that education is a powerful driver of change. Through our educational projects, we use the polar regions as a gateway to inspire curiosity, deepen understanding, and motivate action for our planet. The Arctic and Antarctic are not distant, isolated places, they are vital to the health of the entire Earth system, and their future is closely tied to our own.
This day holds a special meaning for us. One of our co-founders, Sara Catella, has been an Antarctic Ambassador for many years. Her long-standing commitment to Antarctica has been a driving force behind the creation of Polar Horizon. The founding of our NGO is part of her ongoing engagement to advocate for and protect Antarctica and the polar regions through awareness, education, and collective action.
We believe that by connecting people—especially younger generations—to the stories, science, and significance of the polar regions, we can empower a global community ready to act for a sustainable future.
Let’s honor Antarctica not just today, but every day—through knowledge, responsibility, and action.

22/04/2026

HAPPY EARTH DAY 2026! OUR POWER OUR PLANET.

There are places on this planet that still take your breath away — quiet forests where sunlight filters through leaves, oceans that stretch endlessly beyond the horizon, mountains that stand as they have for centuries. But this beauty is not guaranteed. It never was.
Earth doesn’t ask for much. It gives — endlessly, generously — and asks only that we care enough to notice, to protect, to act.
This isn’t about perfection. It’s about intention. It’s about the small choices we make when no one is watching. It’s about remembering that we are not separate from nature — we are part of it.
The air we breathe, the water we drink, the ground beneath our feet — this is our shared home. And every step we take today shapes what tomorrow will look like. So today, don’t just celebrate the Earth. Stand up for it. Speak for it. Care for it.
Because loving this planet isn’t just a feeling — it’s a responsibility.

13/04/2026

In a world where data often feels distant, art has the power to bring reality closer to the heart.

Swiss musician To Athena chose an extraordinary stage — a fragile cave inside a melting glacier — to give voice to a crisis that can no longer be ignored. As the Morteratsch glacier retreats by around 50 meters each year, this breathtaking setting may not survive another summer.

This performance is more than music. It is a moment of witness. A reminder that climate change is not a future threat — it is happening now, reshaping landscapes, ecosystems, and lives.

Sometimes, the most powerful messages are not spoken in boardrooms or reports, but echoed through spaces that are disappearing before our eyes.

Let this be a call not just to listen, but to act.

Swiss musician To Athena has performed inside a cave in a melting glacier to highlight ice loss in the Alps.

09/04/2026

Inspiring the next generation!

Today, Daisy Yao, co-founder of POLAR HORIZON together with
Sara Catella, had the incredible opportunity to present at
Green Oasis School in Shenzhen. China, sharing insights on the polar regions — some of the most fascinating and fragile environments on our planet.

From the icy landscapes of the Arctic to the vast wilderness of Antarctica, the session sparked curiosity, thoughtful questions, and meaningful conversations about climate, exploration, and our role in protecting these unique ecosystems.

A big thank you to the students and faculty for the warm welcome and engaging discussion. The future is in good hands! 💙

02/04/2026

Why We Must Protect the Southern Ocean’s Tiny Giants
Antarctic Krill (Euphausia superba) are small, shrimp-like crustaceans that measure only about six centimeters in length. Despite their diminutive size, they are arguably one of the most critical species on Earth. Their existence is not only the foundation of the Southern Ocean ecosystem but also a vital component of the global climate system.
In the harsh environment of the Antarctic, krill serve as the ultimate keystone species. They act as the primary biological bridge between microscopic plant life (phytoplankton) and the larger predators of the ocean.
Krill consume vast quantities of phytoplankton, converting the sun’s energy into a food source that sustains almost the entire Antarctic food web. Without krill, iconic species such as blue whales, humpback whales, seals, penguins, and various seabirds would face starvation. The collapse of krill populations would trigger a catastrophic domino effect, leading to the rapid decline of these apex predators and fundamentally altering the biodiversity of the Southern Ocean.
Beyond their role as a food source, krill are essential to the health of the entire planet due to their significant contribution to the global carbon cycle.
As krill feed on phytoplankton near the ocean’s surface, they ingest carbon dioxide that the algae have absorbed from the atmosphere. To avoid predators, krill migrate to deeper waters, where they excrete carbon-rich waste (f***l pellets) and shed their exoskeletons. This biological process acts as a massive “conveyor belt,” transporting an estimated 20 million tonnes of carbon into the deep ocean annually. Once there, the carbon can remain sequestered for centuries.

25/03/2026

We’re pleased to announce that POLAR HORIZON is now a member of the European Citizen Science Association (ECSA).

Joining ECSA represents an important step in strengthening our commitment to collaborative, inclusive research and to advancing our work in polar environments. We look forward to engaging with a network of organizations and researchers dedicated to making science more participatory and impactful.

Citizen science is essential to improving our understanding of climate change.
By actively involving individuals and communities in data collection and observation, it not only broadens the reach of research but also builds greater awareness and shared responsibility for our planet’s future.

We’re excited to contribute to this collective effort and to continue bridging science and society.

The European Citizen Science Association (ECSA) was set up to encourage the growth of citizen science in Europe, and to support the participation of the general public in research processes – across science, social science, humanities and the arts.