theSIGNAL ENVIRONMENT
19 September 2026
"In nature there are neither rewards nor punishments — there are only consequences."
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Environment

Asia Braces for a Supersized El Niño

From Hong Kong's heat-law reforms to Taiwan's 40°C disaster drills, Asian governments are racing to prepare for what forecasters call the most intense El Niño on record.

On 9 August, Hong Kong recorded the hottest day in its history. The city's authorities responded within weeks by rewriting workplace rules: companies are now expected to reschedule outdoor tasks, supply cooling equipment and guarantee rest breaks whenever temperatures become dangerous. Employers who fail to comply could face criminal prosecution — a striking shift for a financial hub more accustomed to legislating capital flows than body temperature. That single record-breaking day illustrates a threat that is being felt across the entire Asia-Pacific region.

Driven by exceptionally warm surface temperatures across the tropical Pacific — and intensified by decades of greenhouse-gas emissions — El Niño is forecast to reach very strong intensity by late 2026 and into 2027. The World Food Programme estimates that roughly 50 million people may be pushed into acute hunger as a result. UN Secretary-General António Guterres warned this month that the phenomenon is "being supersized before our eyes." Governments are responding with unusual urgency.

In mainland China, authorities have launched a 100-day campaign to protect harvests from the twin threats of drought and flooding, while Beijing has commissioned a national network of "climate risk maps" designed to pinpoint which cities are most exposed to extreme heat and inundation. Taiwan, meanwhile, has chosen to treat the coming season as a security emergency comparable to a terrorist attack or earthquake. In early September, hundreds of participants completed a three-day exercise simulating sustained temperatures above 40°C, including failures of power grids, water supplies and air-conditioning systems.

Photo: John Sicher / Unsplash
A pedestrian shields herself from the sun in Taipei, where temperatures are forecast to exceed 40°C for days at a time.
Discuss
  • Why might Hong Kong's decision to make heat-law violations a criminal matter be seen as both bold and controversial?
  • In what ways does El Niño illustrate the difference between a natural climate cycle and a human-accelerated disaster?
  • Taiwan modelled its heat drills on anti-terrorism exercises. What does this choice reveal about how governments are reclassifying climate risk?
Science

Actor Sheen meets Welsh minister over toxic dumps

Welsh actor Michael Sheen met First Minister Rhun ap Iorwerth this week to discuss the findings of his BBC documentary, *Buried with Michael Sheen*, which identified elevated levels of cancer-causing PCB chemicals at 13 of 14 sites in Wales and north-west England formerly linked to chemical giant Monsanto. Last week, Sheen urged UK MPs to fund a national testing programme for historic dump sites after blood samples from nearby residents also showed raised PCB levels. Sheen described the meeting as "really constructive," though he cautioned it was "early days" — leaving open the question of whether governments will act before more communities demand answers about their own health.
  • Should celebrities be the ones driving environmental health investigations, or governments?
Science

Lead Ink May Unlock Herculaneum's Burned Scrolls

In a Kentucky laboratory, Douglas Seiler burned papyrus inscribed with Star Wars dialogue and Bible verses — deliberately. The exercise replicated what Mount Vesuvius did to over a thousand scrolls in Herculaneum's ancient library in A.D. 79, a catastrophe that sealed knowledge inside brittle, carbonized husks for nearly two millennia. Publishing in PLOS ONE on September 16, Seiler and Berkeley colleagues demonstrated that lead-based ink absorbs X-rays up to 25 times more intensely than charred papyrus, making hidden letters visible through CT scanning without physically unrolling fragile scrolls. A cheap handheld fluorescence scanner can identify which scrolls contain leaded ink, allowing researchers to prioritise the most readable candidates first.…
  • Should irreplaceable ancient scrolls be scanned before any physical restoration is attempted?
"
El Niño is being supersized before our eyes.
António Guterres, UN Secretary-General
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GLOBAL · Environment
The world’s rivers are at breaking point. Can we save them before it is too late?
AMERICAS · Environment
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theSIGNAL IN THE LAB
1VOCABULARY
braces forinundation
acute hungersupersizedcarbonized husks
pinpointconstructive
2GRAMMAR FOCUS
Discourse markers — contrast and concession (Nevertheless, Whereas, Despite, However, Although, Even though, While)
Contrast and concession markers signal that two ideas are in tension or opposition. 'Despite' and 'Although/Even though' introduce the weaker or surprising fact, while 'Nevertheless', 'However', and 'Whereas' connect contrasting clauses or sentences.
Nevertheless · Whereas · Despite · However · Although · Even though · While
  1. Hong Kong is primarily known for regulating financial markets; , its authorities have now introduced strict laws protecting workers from dangerous heat.
  2. mainland China has launched drought and flood protection campaigns, questions remain about whether these measures can reach all 50 million people at risk.
  3. the warnings from the UN Secretary-General, many governments have been slow to treat El Niño as an immediate emergency.
  4. Taiwan treated the coming climate season as a security threat, some other governments in the region have responded with far less urgency.
  5. the Herculaneum scrolls were badly damaged by Vesuvius, researchers now believe lead-based ink may make their contents readable without unrolling them.
  6. Only a handful of the ancient scrolls have been decoded so far; , scientists are optimistic that the new X-ray technique will unlock many more.
3IDIOMS
Define each idiom in your own words. Then write one sentence of your own using the idiom.
  1. supersized before our eyes (UN Secretary-General, on El Niño)
  2. early days (Michael Sheen, on his meeting with the First Minister)
  3. brace for (article headline)
  4. scale fast enough (closing paragraph, El Niño article)
  5. locked inside (Herculaneum article)
4CRITICAL THINKING
The Herculaneum scrolls and the Monsanto dump sites both involve knowledge that was deliberately or accidentally buried — one by a volcano, one by corporate and governmental silence. What responsibilities do institutions have when they possess information that could change how communities understand their past or protect their future health? And who should bear the cost when that information has been suppressed or simply lost?
5CREATIVE · HEADLINES
Write a headline for the El Niño story in each of the following styles. One line each, no explanation.
  • TABLOID NEWSPAPER
  • LUXURY MAGAZINE
  • ACTIVIST BLOG
6WRITING
The three stories in this edition all involve governments being pushed into action by an outside force — extreme weather, ancient discovery, or a celebrity campaign. Choose one story and argue whether the government response described is genuinely proactive or merely reactive, using specific details from the article to support your view.
7DEGREES OF EXTREMITY
Complete each ladder from mild to strong.
  • warm→→
  • concerned→→
  • inconvenient→→
  • suggested→→
  • readable→→
  • elevated→→
8SPEAKING
  1. Which of the three governments responded most intelligently to climate risk?
  2. Could lead-ink scanning technology be applied beyond Herculaneum scrolls?
  3. What responsibilities do employers have when governments fail to legislate quickly?
  4. How far should documentary filmmakers go when investigating public health threats?