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Climate change science and technology

Climate change science and technology
Latest news, analysis and commentary about the technological aspects of adjusting to climate change, including stories about decarbonisation, the removal of pollutants from the air, water or soil, and innovations in energy-saving technology.
People enjoy the waterfront at the West Kowloon Cultural District in Hong Kong, on September 7. Photo: Sam Tsang
Hong Kong environmental issues

Opinion | Hong Kong lacks a climate narrative to unify its efforts

Hong Kong does not mention ‘climate change’ in its five-year plan, yet it already has many ingredients of climate leadership.

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Science

China starts on the world’s first supercritical CO2 and molten salt energy plant

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Pacific nations

Why China is weighing into the debate on how to respond to shrinking coastlines

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Cathay Pacific

Cathay Pacific, Google scale up AI tests to reduce aviation’s climate impact

Second-phase trials with Contrails.org will target ultra-long-haul Asia and transpacific routes, building on early tests that reduced contrail warming impact by about 40 per cent.

Cathay Pacific says AI deployment will complement other initiatives such as fleet modernisation. Photo: Sam Tsang
(From left to right) Tony Pringle, Cathay director digital Lawrence Fong, Michael Yue and Kemal Armada. Photo: Jonathan Wong
Science

Why climate extremes will not stop expansion of China’s nuclear power industry

Technological advances alongside planning for increasingly severe weather events are more likely to help the rapidly growing sector.

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China energy security

China sends airborne wind turbine up 4,000m to generate power

The craft, developed by a Chinese start-up, uses winds at high altitude to produce electricity.

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China energy security

China wasting more clean energy than its power demand growth this year: report

All new electricity needs in China could have been met if the clean energy had been absorbed by the grid, non-profit organisations say.

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A coal-fired power plant in eastern China's Zhejiang province on July 15. Photo: AFP
China energy security

China’s nuclear roll-out gets a jolt with new 5-year plan for reactors

Beijing targets installed capacity of 110 gigawatts by 2030, aiming to surpass US capacity and achieve a 50 per cent non-fossil power mix.

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Climate change

Macroscope | Who pays when overheated roads melt and rails buckle?

Costs are mounting from the damage caused by extreme weather on roads, railways, bridges and other basic infrastructure.

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Climate change

Opinion | Trump’s rants over China’s green energy transition are just hot air

It’s not Chinese turbines or European rules that look outdated but Trump’s belief that China’s energy transition is not world-leading.

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US President Donald Trump enjoys a light moment during a meeting with oil executives in the East Room of the White House in Washington on January 9. Photo: AP
China energy security

China’s latest nuclear reactor connects to grid, set to supply power to 1m

New reactor at Taipingling Nuclear Power Plant launches as Guangdong sees a growing number of reactors built across the province.

The Taipingling Nuclear Power Plant in China’s southern Guangdong province. Photo: Xinhua
China energy security

China green-energy costs seen undercutting traditional energy as capacity soars

Energy-storage chairman eyes ‘0.1-yuan era’ for equipment as solar and wind projects gradually sideline coal in the nation’s power-generation mix.

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Climate change

Opinion | Geopolitics is complicating the green transition – and China’s moment

Governments want to transition to cleaner energy but also cut strategic reliance on China. Balancing these goals will be tricky.

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Singapore

Forget air-con, Singapore looks underground for a cooler future

The rapidly warming city state has among the highest per capita use of air conditioners in the Asia-Pacific.

Underground cooling pipes are seen installed beneath Singapore’s Marina Bay Sands Hotel. Photo: AFP
Environment

Video | Are we on the verge of another nuclear age?

Industry leaders predict China will become the world’s largest nuclear power producer by 2030.

Thumbnail for DeepDive video: Are we on the verge of another nuclear age?
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Hong Kong environmental issues

Editorial | Hong Kong’s trees can serve as barometers amid climate change

The authorities and the public can play a role in documenting anomalies in leaf-shedding and flowering, and act to mitigate environmental harm.

China economy

Opinion | Rise of China complicates ‘authoritarian’ vs ‘democratic’ binary

As China’s trajectory exposes the limitations of labels inherited from another era, understanding how governance systems work is more important.

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China energy security

Nuclear power revival gets boost from Iran war

China is set to open seven nuclear reactors this year, and other countries are reconsidering atomic energy as the Strait of Hormuz shutdown disrupts oil and gas supplies.

Construction work at a nuclear power plant in Jiangsu province. Photo: Xinhua
China energy security

China’s vast nuclear power sector now able to build 50 reactors at a time

China has more reactors under construction than the rest of the world combined, as it aims to become a global leader in nuclear power.

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China energy security

Turning point? Clean energy met 100% of world’s new power needs in 2025: report

World has ‘firmly entered’ the clean growth era, with renewables overtaking coal as a power source for the first time last year, report finds.

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China economy

Opinion | As oil-shocked world turns to renewables, China will reap the rewards

The biggest losers will be the Middle East and the US, as oil becomes less important and doubts grow about US might.

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The Xianshuiwo photovoltaic power plant in the Yi-Hui-Miao autonomous county of Weining, in southwest China’s guizhou province, is seen on July 3, 2025. Photo: Xinhua
Climate change

Outside In | The end of an era at sea offers us a grim reminder on land

One of the biggest icebergs in recent memory is melting out of existence. Its silent fate mirrors the neglect of our biosphere.

Nasa’s Aqua satellite shows an iceberg with the designation A23a heading towards the island of South Georgia off the coast of Antarctica on January 15, 2025. Photo: Nasa Worldview/dpa
European Union

EU eyes nuclear energy again as oil prices soar amid Iran war

It was ‘a mistake’ to turn away from ‘a reliable, affordable source of low-emission power’, says EU chief, amid new funding - and protesters.

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China energy security

China vows to stabilise oil and gas output in new 5-year plan amid global risks

Amid Mideast instability and US$100 oil, China is mapping out strategic production bases, underpinning long-term energy security.

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Science

China plans to fire up world’s first accelerator-driven nuclear reactor

Device deemed to burn uranium 100 times more efficiently, while cutting nuclear waste lifespan to less than a thousandth of current span.

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Chinese state media says the China Initiative Accelerator Driven System could turn nuclear power into a “green, safe, stable energy source for 1,000 years”. Image: Shutterstock
China technology

Editorial | China steps up its clean energy push with electric ships

As the world’s largest shipbuilder and a leader in EVs and advanced batteries, the country is well placed to help clean up the polluting shipping industry.

The Gezhouba, China’s biggest all-electric bulk carrier, being launched in Yichang, Hubei province, on October 23, 2025. Photo: Xinhua
Hong Kong environmental issues

Opinion | The high price of Hong Kong’s slow switch to electric buses and taxis

Slow electrification undermines the city’s green ambitions and squanders a chance to secure its role as a Greater Bay Area innovation hub.

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India

High tension in India as banks, utilities resist solar shift

India’s efforts to nearly double clean energy capacity to 500 gigawatts by 2030 are being met with reluctance from banks and state utilities.

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