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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.
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
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.

European Union

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

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China energy security

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

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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.

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.

Employees inspect photovoltaic cells used in solar panels at an Adani Group factory in Mundra, India, on November 5, 2025. Photo: AFP
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 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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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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Chinese researchers have reported that the technically exploitable capacity of hydropower in Tibet could reach 178 gigawatts, and more than 100GW for wind power. Photo: Getty Images
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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Research team says it has received interest from several companies keen to collaborate on commercialising the cooling technology. Photo: Handout
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’.

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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China’s advanced grid protection technology enables power grid faults to be isolated and restored within a split second, and also solves the problem of identifying micro-current faults at the hundred milliampere level. Photo: Xinhua
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 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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Illustration: Henry Wong
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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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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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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Buildings are shrouded in smog, in New Delhi, India, on November 29. Photo: Reuters
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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Illustration: Craig Stephens
Science

Nuclear tech milestone: China’s supercritical generator connects to grid

Supercritical carbon dioxide power system in southwest China is the world’s first commercial unit of its kind.

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Climate change

Opinion | China’s quiet climate leadership offers hope for Global South and world

The Global North is failing to deliver on its climate pledges while Beijing patiently lays the groundwork for a greener future.

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Science

China overtakes US in medical research in science power shift: top publisher

Country is ‘now global leader in scientific publishing and output’, Fred Fenter, chief executive editor of Swiss-based Frontiers, says.

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In 2024, China accounted for half of the paper published in the medical field, according to an academic publisher. Photo: Shutterstock
Climate change

Outside In | Takeaway from Cop30: climate action needs to be up close and local

A focus on adaptation means a pivot to action on floods, typhoons, heatstroke deaths, wildfire damage – issues of immediate survival.

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Construction workers put up large umbrellas in Wan Chai on May 23, when a very hot weather warning was issued. Hong Kong has suffered 50 to 60 hot nights (over 28 degrees) every year since 2020, compared with around 20 a year a decade earlier. Photo: Dickson Lee
Climate change

Opinion | How Cop30 can advance a new template for South-South climate leadership

Proven monitoring, policy lessons and the moral weight of the Amazon venue give the Global South a rare convergence of tech capability and political urgency.

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China-Latin America relations

Cop30: China to join coalition seeking shared rules for carbon trading

New alliance, which also includes the EU and UK, was created to align standards globally and help countries trade carbon credits more easily.

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