Bjorn H. Samset: Latest Articles, Analysis and Profile
Bjorn H. Samset is a Senior Researcher in Climate and Atmospheric Sciences at the Centre for International Climate and Environment Research - Oslo.
Bjorn H. Samset is a Senior Researcher in Climate and Atmospheric Sciences at the Centre for International Climate and Environment Research - Oslo.
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South China Morning Post
3 days ago
- South China Morning Post
Bjorn H. Samset: Latest Articles, Analysis and Profile
+ FOLLOW Bjorn H. Samset is a Senior Researcher in Climate and Atmospheric Sciences at the Centre for International Climate and Environment Research - Oslo. Bjorn H. Samset is a Senior Researcher in Climate and Atmospheric Sciences at the Centre for International Climate and Environment Research - Oslo.
South China Morning Post
3 days ago
- South China Morning Post
Is Asia's cleaner air driving global warming?
Global warming has picked up pace since around 2010, leading to the recent string of record hot years. Why this is happening is still unclear and is among the biggest questions in climate science today. Our new study reveals that reductions in air pollution – particularly in China and East Asia – are a key reason for this faster warming. Advertisement Clean-up of sulphur emissions from global shipping has been implicated in past research. But that clean-up only began in 2020, so it is considered too weak to explain the full extent of this acceleration. Nasa researchers have suggested that changes in clouds could play a role, either through reductions in cloud cover in the tropics or over the North Pacific. One factor that has not been well quantified, however, is the effect of monumental efforts by countries in East Asia , notably China, to combat air pollution and improve public health through strict air quality policies. There has already been a 75 per cent reduction in East Asian sulphur dioxide emissions since around 2013, and that clean-up effort picked up pace just as global warming began accelerating. Our study addresses the link between East Asian air quality improvements and global temperature, building on the efforts of eight teams of climate modellers across the world. Women in traditional Chinese attire use an umbrella to shield themselves from the sun in Shanghai on July 4. Photo: Reuters We have found that polluted air may have been masking the full effects of global warming. Cleaner air could now be revealing more of the human-induced global warming from greenhouse gases.
South China Morning Post
5 days ago
- South China Morning Post
How does space affect the mind? China sends ‘mini-brain' to Tiangong to find out
China has sent a living 'mini-brain' – a chip the size of a credit card containing human brain cells and blood vessels – to its Tiangong space station to find out how space messes with the mind. Advertisement Researchers aboard the International Space Station have previously used brain cell cultures and early-stage brain organoids to study ageing and disorders such as Alzheimer's. But China's experiment appears to be the first time a highly integrated brain chip featuring blood-brain barrier functions has been sent into space Launched on the Tianzhou-9 cargo spacecraft on Tuesday, the experiment aims to probe the effects of microgravity on the brain and eventually help astronauts prevent dizziness, sleep problems and changes in cognitive function during long missions, according to lead scientist Qin Jianhua of the Dalian Institute of Chemical Physics. 01:25 China's Tianzhou-9 cargo craft launches for Tiangong space station resupply mission China's Tianzhou-9 cargo craft launches for Tiangong space station resupply mission The brain model – grown from living tissue including nerve and immune cells, capillary-like vessels and a barrier that mimics the brain's natural defences – offers more human-like data than traditional cell cultures or animal experiments, Qin told the state-run China News Service on Tuesday. Advertisement She said its three-dimensional, dynamic design also allowed real-time observation of how brain tissues behaved in orbit, making it a powerful tool for space medicine, neuroscience research and drug development.
