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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.
Kapok trees bloom with vibrant red flowers while retaining green foliage that typically would have shed during winter, in Hong Kong on March 16. Photo: AFP
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

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China energy security

Nuclear power revival gets boost from Iran war

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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A view of the Taipingling nuclear power project in China’s Guangdong Province. Photo: Xinhua
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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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.

China’s carbon neutral goal

Green gambit sees China turn old oil pipeline into new carbon highway

Successful 27km trial unlocks vast carbon dioxide transport potential, bridging geographical gaps to accelerate a process seen as vital to large-scale decarbonisation.

China has successfully repurposed a long-haul oil pipeline to transport carbon dioxide. Photo: CCTV
China energy security

China’s clean power energising economy, adding a Brazil’s worth of GDP: report

Clean energy industries drove more than one-third of China’s economic growth in 2025, as they continue to expand rapidly, study finds.

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Workers check solar panels installed on a lake in China’s central Anhui province. Photo: AFP
Science

Tibet’s exploitable green power could meet China’s energy needs: official survey

Extreme conditions, a fragile ecology and spatial constraints limit the expansion of renewable energy in Qinghai-Tibet Plateau, study finds.

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Science

Chinese hydrogel coating boosts solar panel output by 13%, ideal for hot regions

Researchers say cooling innovation can lower temperature of overheated ‘hotspots’ on solar cells that can cause panel failure and fire risk.

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China technology

China’s nuclear fusion start-ups power up with record funding round

Startorus Fusion raised US$143 million, a record for a private firm, while Supermag New Energy received ‘several hundred million yuan’.

China has launched an association specifically tasked with accelerating funding for the commercialisation of nuclear fusion technology. Photo: Shutterstock
Energy

Opinion | Clean energy works at scale. Now it must be coordinated

The next decade will be defined not only by new clean energy capacity, but by how well grids, storage and demand systems are connected and optimised.

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Science

China sends 0.1-second blackout recovery tech to protect grids in 12 nations

Grid protection technology enables faults to be isolated and restored within hundred-millisecond window, compared with hours previously.

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Science

China creates world’s first clone-hybrid rice that could double global output

Team developed 6 apomictic rice varieties tested over multiple generations in Hainan and Zhejiang provinces.

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Photo: Getty Images
Environment

As Trump taps coal to power AI, China moves on to clothe the world with it

A once-struggling Chinese coal city turns the traditional fossil fuel into nylon, manufacturing popular fashion from sportswear to lingerie.

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China is turning the fossil energy resource into nylon, spurring on its economy with the manufacture of sportswear and other popular fashion items. Photo: Xinhua
China economy

Opinion | Arguing about China’s overcapacity overlooks its drive for clean energy

What is often described as overcapacity is the outcome of a development strategy that treats energy as the foundation of economic capability.

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Science

US green tech retreat echoes mistake of China’s Qing dynasty before collapse

While Washington pulls back on climate, Beijing is making it possible for developing nations to leapfrog into a cleaner energy era.

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China economy

Opinion | How China is cementing its central role as the architect of green tech

Beyond climate leadership and capacity building, China is rewriting its own energy system – and the global energy order.

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An aerial view of the No 1 booster station of the Ningxia Power Investment Yongli (Zhongwei) 3-megawatt photovoltaic green power project, in Shapotou district, Zhongwei city, Ningxia. It was officially connected to the grid and began power generation on October 25. Photo : Xinhua
Science

China desalination tech makes fresh water cheaper than tap water – plus hydrogen

Facility in Shandong province also produces mineral-rich brine for industrial use, achieving ‘one-in, three-out’ circular economy.

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China has figured out a way to produce fresh water from seawater for just two yuan (US$0.28) per cubic metre. Photo: AFP
India

New Delhi’s smog surge linked to 200,000 respiratory cases

Acrid smog chokes Delhi’s skyline each winter, when cool air traps a deadly mix of pollutants from crop burning, factories, and traffic.

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Climate change

Opinion | How Cop30 laid bare the new geopolitics of climate action

Fractures, even among the Global South, show the energy transition is not just a technical challenge but a deeply political negotiation.

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