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From Oil Spills to New Species: How Tech Reveals the Ocean

Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP
Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP
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From Oil Spills to New Species: How Tech Reveals the Ocean

Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP
Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP

The ocean covers nearly three-quarters of our planet but scientists say we have barely scratched the surface of what lives in our seas.
But new technologies are helping to change that, revealing hidden oil spills, speeding up the discovery of new species and uncovering how light pollution impacts marine life.
Uncovering hidden oil spills
Satellite imagery means large oil spills in the ocean are relatively easily detected. When a tanker crashes or a pipe bursts, scientists know where to look, AFP said.
But smaller pollution events can appear as nothing more than a thin streak against the smooth sea surface -- the maritime equivalent of a needle in a haystack.
"It used to take human analysts weeks if not months to be able to detect a single (small-scale) oil pollution incident," explained Mitchelle De Leon of US-based NGO SkyTruth.
The group harnesses machine learning to comb through large datasets of satellite imagery and find spills that might previously have gone undetected.
SkyTruth has revealed spills in the Red Sea and the Mediterranean and helped expose pollution from shadowy Russian ships.
There are limitations to the technology, including determining the composition of a spill, but the group says it offers an early warning system for scientists, media and governments.
"We think of our tool as a starting point... to make hidden human pollution events more visible," said De Leon.
Understanding light pollution
We have long known that our obsession with lighting the night sky obscures the stars and confuses terrestrial animals, but what impact does it have on the sea?
To understand that, scientists need satellite images to show how light spreads from coastal megacities, as well as complex models that can calculate how light penetrates the ocean, said Tim Smyth, a marine biogeochemistry specialist at Britain's Plymouth Marine Laboratory.
Seawater generally absorbs more red light, but that can change in the presence of phytoplankton or high turbidity.
"We're able to program computers such that we can model the light field under the water with a high degree of accuracy," said Smyth.
His research found two million square kilometers (770,000 square miles) of ocean -- an area 10 times the size of Britain -- is affected by light pollution globally.
The effects are profound, from disrupting feeding by fish and seabirds, to interfering with coral spawning and the nightly migrations of phytoplankton up and down the water column.
The good news is "it's something we can do something about", said Smyth.
Switching off unnecessary illuminations such as billboards and redesigning lights to reduce "spillage" into the sky will bring down costs and carbon emissions while benefiting wildlife on land and in the sea, he explained.
Species discovery
Advances in technology have allowed us to reach the ocean's darkest depths but scientists estimate we know about just 10 percent of what lives in our seas.
And before we even realize a new species exists, "we are losing that diversity", said Lucy Woodall, a marine biologist and head of science at Ocean Census.
Launched in 2023, the global alliance of scientists aims to speed up the discovery of ocean species from coral to crabs.
That works in part by collaborating with high-tech, lab-equipped research vessels where researchers can immediately start work on collected specimens.
Genetic sequencing can now be done in the field, "which even 10 years ago would have been months and months worth of work back on land", said Woodall.
On average, it takes more than 13 years from finding a possible new species to officially describing it for science.
"We can't afford to wait for that," said Woodall.
The project encourages scientists to share findings sooner, with an explanation of why they believe a species is new.
It won't replace the slower work of proving new species with methods such as genetic testing but it can accelerate knowledge at a time of urgency.
The project has documented more than 800 new discoveries, which are shared on its open-access biodiversity platform.
"We want to ensure that companies, countries, and individuals really value the ocean and ocean life for what it does for them and our planet," said Woodall.

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Varieties

Lonely Tree in Wales Is an Instagram Star, but its Fate Is Inevitable

The Lonely Tree, often pictured submerged in water, was first planted in 2010. (Getty Images)
The Lonely Tree, often pictured submerged in water, was first planted in 2010. (Getty Images)
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Lonely Tree in Wales Is an Instagram Star, but its Fate Is Inevitable

The Lonely Tree, often pictured submerged in water, was first planted in 2010. (Getty Images)
The Lonely Tree, often pictured submerged in water, was first planted in 2010. (Getty Images)

It is one of Wales' most-loved beauty spots - but the time of the so-called Lonely Tree being an Instagram star could be slowly coming to an end.

The birch tree's striking setting at Llyn Padarn in Eryri, also known as Snowdonia, draws photographers to capture the sight through the seasons, according to BBC.

But the local authority Cyngor Gwynedd has raised the prospect of the tree, which was planted around 2010, disappearing within the next decade or so.

A lack of nutrients in the soil means birch trees have “a relatively short lifespan” in the area, typically living for around 30 years, but the fact that The Lonely Tree is sometimes submerged in water means its time could be even shorter.

Thousands of walkers and photographers make their way there each year and the tree has many social media sites dedicated to it, including one with 3,500 members on Facebook.

Marc Lock from Bangor, Gwynedd, said: “The Lonely Tree holds a special place in my heart and that of my family.”

He added: “Nestled down by the Lonely Tree, it's a perfect spot for us to sit, reflect and soak in the breath-taking scenery. We often go paddleboarding there in the summer months.”

However, Lock said the area really became his sanctuary after his wife bought him a camera for Christmas and he took up photography.

It was the place he headed to straight away, and he returns regularly at various times of the day and throughout the seasons.

“It's my go-to spot whenever I have some free time and my camera in hand,” he added. “I can't imagine what I would do if anything devastating happened to it like that at the Sycamore Gap tree at Hadrian's Wall. It's simply unthinkable.”

The Sycamore Gap was a much-loved landmark beside Hadrian's Wall in Northumberland that also drew hikers and photographers from far and wide.

It was more than 100 years old and had been the scene of many proposals, with people making the trip there from around the world.

But it was cut down by vandals in September 2023, causing uproar, with thousands of people leaving tributes and posting messages about their love for the beauty spot.

Two men were jailed for four years and three months after admitting the illegal felling.

While maybe not quite as famous as the Sycamore Gap was, The Lonely Tree is every bit as special to those that hold it dear to their heart.

Varieties

Four Signs You're Self-Sabotaging Your Joy

Threat or uncertainty can reduce cognitive regulation and increase avoidance behaviors. (Indiana University)
Threat or uncertainty can reduce cognitive regulation and increase avoidance behaviors. (Indiana University)
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Four Signs You're Self-Sabotaging Your Joy

Threat or uncertainty can reduce cognitive regulation and increase avoidance behaviors. (Indiana University)
Threat or uncertainty can reduce cognitive regulation and increase avoidance behaviors. (Indiana University)

Most of us, at some point in our lives, have stood in the way of our own growth.

We make progress on a project, start to feel hopeful about a relationship, or finally get on track with a goal, and then we do something that undermines it.

We fall into a procrastination spiral, pick a fight, or simply quit; in doing so, we talk ourselves out of something that could potentially bring us happiness.

There’s a name for this kind of behavior: self-sabotage.

Dr. Mark Travers, an American psychologist with degrees from Cornell University and the University of Colorado Boulder, wrote an essay at Psychology Today about four well-studied reasons why people sabotage good things, based on research in psychology.

Avoiding blame

According to Travers, one of the most consistently researched patterns in self-sabotage comes from what psychologists call self-handicapping.

He said this is a behavior in which people create obstacles to their own success so that if they fail, they can blame external factors instead of internal ability.

A prime example comes from classic research in which researchers observed students who procrastinated studying for an important test. The ones who failed mostly attributed it to a lack of preparation rather than a lack of organization or discipline.

Self-handicapping is not simply laziness or whimsy. Rather, it is a strategy people use to protect their self-worth in situations where they might perform “poorly” or where they might be perceived as inadequate.

Fear of failure or success

People often think of the fear of failure as the main emotional driver behind self-sabotage.

But research points to the fear of success as an equal, yet less-talked-about engine of the phenomenon. Both fears can push people to undermine opportunities that are actually aligned with their long-term goals.

He said people who worry that failure will confirm their negative self-beliefs are more likely to adopt defensive avoidance tactics, like procrastination or quitting early.

Fear of success, though less widely discussed, operates in a similar fashion. What motivates this fear is the anxiety that comes with the consequences of success.

So, self-sabotaging success can be a way to stay within a comfort zone where expectations are familiar, even if that zone is unsatisfying.

Negative self-beliefs

Self-sabotage is tightly intertwined with how people view themselves. When someone doubts their worth, their ability, or their right to be happy, they may unconsciously act in ways that confirm those negative self-views.

Psychological theories help explain this.

Self-discrepancy theory proposes that people experience emotional discomfort when their actual self does not match their ideal self. This mismatch can lead to negative emotions such as shame, anxiety, or depression.

Coping with stress and anxiety

Self-sabotage often emerges in moments of high stress or emotional threat. When people feel overwhelmed, anxious, or stretched thin, their nervous systems shift into protective modes. Instead of moving forward, they retreat, avoid, or defensively withdraw.

Threat or uncertainty can reduce cognitive regulation and increase avoidance behaviors. In situations of perceived threat, even if the threat is potential success or evaluation, people can default to behaviors that feel safer, even if they undermine long-term goals.

Varieties

2025 Was the World’s Third-Warmest Year on Record, EU Scientists Say

This photograph taken in Lanester, western France on May 31, 2025, shows smoke rising from a factory. (AFP)
This photograph taken in Lanester, western France on May 31, 2025, shows smoke rising from a factory. (AFP)
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2025 Was the World’s Third-Warmest Year on Record, EU Scientists Say

This photograph taken in Lanester, western France on May 31, 2025, shows smoke rising from a factory. (AFP)
This photograph taken in Lanester, western France on May 31, 2025, shows smoke rising from a factory. (AFP)

The planet experienced its third-warmest year on record in 2025, and average temperatures have ​exceeded 1.5 degrees Celsius of global warming over three years, the longest period since records began, EU scientists said on Wednesday.

The data from the European Union's European Centre for Medium-Range Weather Forecasts (ECMWF) found that the last three years were the planet's three hottest since records began - with 2025 marginally cooler than 2023, by just 0.01 C.

Britain's national weather service, the UK Met Office, confirmed its own data ranked 2025 as the third-warmest in records going back to 1850. The World Meteorological Organization will publish its temperature ‌figures later ‌on Wednesday.

The hottest year on record was 2024.

EXTREME WEATHER EVENTS

ECMWF ‌said ⁠the ​planet ‌also just had its first three-year period in which the average global temperature was 1.5 C above the pre-industrial era - the limit beyond which scientists expect global warming will unleash severe impacts, some of them irreversible.

"1.5 C is not a cliff edge. However, we know that every fraction of a degree matters, particularly for worsening extreme weather events," said Samantha Burgess, strategic lead for climate at ECMWF.

Governments pledged under the 2015 Paris Agreement to try to avoid exceeding ⁠1.5 C of global warming, measured as a decades-long average temperature compared with the pre-industrial era.

But their failure to reduce ‌greenhouse gas emissions means that level could now be ‍breached before 2030 - a decade earlier than ‍had been predicted when the Paris accord was signed in 2015, ECMWF said.

"We are ‍bound to pass it," said Carlo Buontempo, director of the EU's Copernicus Climate Change Service. "The choice we now have is how to best manage the inevitable overshoot and its consequences on societies and natural systems."

POLITICAL PUSHBACK

Currently, the world's long-term warming level is about 1.4 C above the pre-industrial ​era, ECMWF said. Measured on a short-term basis, the world already breached 1.5 C in 2024.

Exceeding the long-term 1.5 C limit - even if ⁠only temporarily - would lead to more extreme and widespread impacts, including hotter and longer heatwaves, and more powerful storms and floods.

In 2025, wildfires in Europe produced the highest total emissions on record, while scientific studies confirmed specific weather events were made worse by climate change, including Hurricane Melissa in the Caribbean and monsoon rains in Pakistan which killed more than 1,000 people in floods.

Despite these worsening impacts, climate science is facing increased political pushback. US President Donald Trump, who has called climate change "the greatest con job", last week withdrew from dozens of UN entities including the scientific Intergovernmental Panel on Climate Change.

The long-established consensus among the world's scientists is that climate change is real, mostly caused by humans, and getting worse. Its main cause ‌is greenhouse gas emissions from burning fossil fuels such as coal, oil and gas, which trap heat in the atmosphere.