theSIGNAL SCIENCE
29 June 2026
"We do not inherit the Earth from our ancestors; we borrow it from our children."
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Science

Humans Pushed Antarctica's Pine Island Glacier Back

A landmark study is the first to directly link the retreat of a major Antarctic glacier to human-driven climate change — and the consequences are global.

Picture a river of ice wider than a small country, quietly draining the West Antarctic Ice Sheet into the Amundsen Sea. That river is Pine Island Glacier. It has been one of the biggest single contributors to rising sea levels on Earth. And now, for the very first time, scientists have shown that human beings made it worse — measurably, quantifiably worse.

The research, led by Dr. Alex Bradley at King's College London and the British Antarctic Survey, was published in the journal *The Cryosphere*. It is the first study ever to directly attribute the changes of a major Antarctic outlet glacier to human activities. The team used climate modelling techniques that are already well established for heat waves, floods, and mountain glaciers — but which had never before been successfully applied to Antarctica's vast, remote ice streams.

What did the numbers show?

Photo: Matt Palmer / Unsplash
Pine Island Glacier drains a vast section of the West Antarctic Ice Sheet toward the sea.
Discuss
  • What does it mean to 'attribute' a natural event to human activity, and why is that scientifically difficult?
  • Why might it matter to the public whether glacier retreat is labeled as human-caused or natural?
  • The study uses climate models to reach its conclusions. How much should we trust models when studying remote places like Antarctica?
  • Should countries that emit the most greenhouse gases be held financially responsible for sea level rise affecting coastal nations?
  • If Antarctica feels impossibly remote, why do you think it has taken this long to study its glaciers in this way?
Science

Europe's Heat Wave Breaks Records East

One number stopped people in their tracks: 1,300. That is how many excess deaths the World Health Organization had already recorded across Europe since June 21, as an unprecedented heat wave pushed eastward into the Czech Republic, Hungary, and Poland. At least 191 million Europeans faced temperatures above 35°C on Sunday alone. …
  • Should governments declare a climate emergency when heat waves break records?
∞
Without sustained warming of the surrounding ocean since the mid-20th century, the glacier would not have retreated as far as it has.
Dr. Alex Bradley, Lead Author, King's College London
Science

Hawaii Paves Roads With Ocean Plastic

Every year, ghost fishing nets drift through Hawaiian waters, trapping wildlife and smothering coral. What if the answer to that problem was literally beneath your feet? Researchers at Hawaiʻi Pacific University are melting discarded fishing nets and household plastic waste into asphalt binder — replacing the virgin polymer normally used in Hawaii's roads since 2020. …
  • Should governments everywhere require roads to be built with recycled plastic?
AMERICAS · Science
Nasa rover detects potential signatures of ancient microbial life on Mars
GLOBAL · Science
Earth may have been seeding Venus with life for billions of years
EUROPE · Science
Millions of stars light up largest and most detailed shot of Milky Way’s centre
WORLD · Science
Uranus, Neptune may be magma worlds, not ice giants
theSIGNAL IN THE LAB
1VOCABULARY
outlet glacierlandward withdrawal
ice shelfattributeasphalt binder
excess deathsunprecedented
2GRAMMAR FOCUS
Inversion — negative adverbials
When a sentence begins with a negative or restrictive adverbial (e.g. Not only, Hardly, Never, No sooner), the subject and auxiliary verb are inverted, as in a question. This structure adds emphasis and is common in formal or academic writing.
had · did · was · were · only · never · before
  1. Not did scientists prove that humans caused glacier retreat — they also showed the damage was measurable.
  2. Never climate attribution techniques been successfully applied to Antarctica's major ice streams before this study.
  3. Hardly the heat wave reached Eastern Europe when records began falling in the Czech Republic, Hungary, and Poland.
  4. Not only Pine Island Glacier retreat further because of human emissions, but it is expected to continue doing so for centuries.
  5. No sooner scientists published their findings than new data confirmed further warming of the Amundsen Sea.
  6. Not only 191 million Europeans exposed to temperatures above 35°C, but over 1,300 excess deaths were already recorded.
  7. Never researchers in Hawaii imagine that discarded fishing nets could one day be driven over as part of a road surface.
3PHRASAL VERBS
Match the phrasal verb to its definition. All six appear in today's articles.
  1. pulling back
  2. pushing under
  3. looking backward
  4. reckon with
  5. pushing eastward
  6. haul debris
4CRITICAL THINKING
The Hawaiian road project pays local fishers to collect ocean plastic — turning pollution into a resource and creating income at the same time. Does this kind of market-based solution strike you as more or less effective than government regulation in tackling environmental problems, and what could go wrong with relying on it?
5CREATIVE · HEADLINES
Write a headline for the top story in each of the following styles. One line each, no explanation:
  • TABLOID NEWSPAPER
  • LUXURY MAGAZINE
  • ACTIVIST BLOG
6WRITING
Europe is warming at twice the global average, yet some countries in the region are only beginning to prepare for extreme heat. Choose one specific policy — for cities, hospitals, or farms — and argue why it should be prioritised above others.
7DEGREES OF EXTREMITY
Complete each ladder from mild to strong.
  • cool→→
  • warm→→
  • pull back→→
  • noticeable→→
  • concern→→
  • rise→→
  • damage→→
8SPEAKING
  1. How should cities redesign themselves to survive extreme heat?
  2. Which groups of people suffer most when glaciers melt rapidly?
  3. Does paying fishers to collect plastic actually solve the problem?
  4. What personal changes would you make knowing sea levels are rising?
  5. Can one country's environmental innovation genuinely inspire the world?