Bjørn Hallvard Samset
Bjørn Hallvard Samset is a physicist and science disseminator, with broad experience in atmospheric science and global climate modelling.
He is studying precipitation and the role of atmospheric aerosols in a changing climate, mainly through climate modelling. Bjørn is a regular newspaper columnist and science commentator. He has previously worked on particle physics, with the ATLAS collaboration at CERN and the BRAHMS collaboration at RHIC. Bjørn has a PhD in Nuclear Physics from the University of Oslo (2006).
Take climate-changing aerosols seriously
The dangerous impacts of aerosol changes on vulnerable regions should have been a priority at COP27 after climate policymakers agreed a breakthrough deal to support these parts of the world, scientists have claimed.
Atmospheric particles | Climate risk | Temperature changes | Extreme weather
CICERO researchers contributing to the IPCC’s Sixth Assessment Report
Researchers from CICERO are contributing to the world's most prominent assessment of climate knowledge in areas such as regional impact, investment and finance, political science, climate scenarios and atmospheric sciences.
IPCC Sixth Assessment Report
ARIDITY - The role of anthropogenic dust in the present and future climate system
Dust is the most abundant species of aerosol in the atmosphere. While mineral dust from deserts is the largest source, an important but less well-studied component is soil dust from sparsely vegetated surfaces. Commonly referred to as “anthropogenic dust”, arising from the influence of human activities on land surfaces and subsequent increase in wind erosion and dust emissions, this source is believed to contribute a substantial fraction to the total global dust load. However, the contribution and climate impact of anthropogenic dust, through interactions with radiation, clouds and precipitation, is poorly quantified.
Atmospheric particles | Climate Models | Air pollution | Precipitation changes
CATHY - Climate implications of rapid changes in Asian Anthropogenic Aerosol emissions
Emissions of Asian Anthropogenic Aerosols (A3) are rapidly changing - most notably black carbon and sulphate aerosol precursors from India and China. The resulting range of climate impacts and societal hazards may dominate regionally over greenhouse gas induced trends for the next several decades, but the implications are as yet insufficiently explored. CATHY (Climate implications of rapid changes in Asian Anthropogenic Aerosol emissions: Temperature, Hydrological cycle and variabilitY) tackles the urgent need for quantifying climate related hazards resulting from ongoing and projected changes in A3 emissions.
Climate impacts internationally | Temperature changes | Atmospheric particles | Precipitation changes | Air pollution | Climate Models | Extreme weather | Climate risk
AVIATE: How can aviation contribute to a low-carbon society?
The AVIATE (Aviation in a low-carbon society) project will provide better understanding of the climate impact of aviation, both for Norway and globally, and explore options for reducing that impact.
Emission scenarios | Transport | Atmospheric particles | International climate policy | Consumer behaviour | Carbon emissions Norway | Carbon emissions globally