Ragnhild Skeie is an atmospheric scientist.
She has her PhD from the University of Oslo (2012), and has worked at CICERO since 2005.
Global warming potential of hydrogen estimated
The global warming effect of leaked hydrogen is almost 12 times stronger than co₂, shows a new study by CICERO, a climate research centre, published in Nature Communications Earth & Environment.
Sharing global climate responsibility – how to resolve the conflict?
Who is responsible for climate change? How to break the equity deadlock? These questions have been hanging over international climate talks since several decades.
International climate policy | Carbon emissions globally | Climate negotiations
AMMONIA: Climate and environmental impacts of green ammonia (NH3)
The development of green ammonia (NH3) has recently gained wide interest due to its potential to decarbonize ammonia production and as a carbon-free solution for energy storage and transportation. Green ammonia production is purely based on renewable energy sources and no carbon is associated with its use, e.g. as a chemical fertilizer, or when ammonia is combusted in an engine. However, the production and use of ammonia come with other climate and environmental challenges due to its alteration of the Earth’s nitrogen cycle.
Transport | Renewable energy | Energy consumption
CN-coESM - Permafrost, wildfire, climate change processes, interactions, and feedbacks: co-development of Earth System Models between China and Norway
Arctic-boreal regions are warming at a much faster rate than the global mean. Arctic-boreal ecosystems combined are the largest reservoirs of terrestrial carbon and have long snow covered seasons. As a result, processes involved in these ecosystems have a high significance for global climate.
Methane | Climate Models
ReGame: Reliable global methane emissions estimates in a changing world
In REGAME we will update chemistry transport models (FLEXPART, OsloCTM) to include the kinetic isotope effect (KIE) of methane (CH4), enabling better constraints on the CH4 budget (KIE is dependent on source/ sink). We will update the atmospheric inversion framework FLXINVERT to include novel use of satellite CH4 fields (Sentinel 5P). This will include significant changes to FLEXINVERT, which will also be applicable to other satellite data e.g. carbon dioxide (co₂) and improve the model capabilities to handle large data fields in general. With these upgrades we assess CH4 emissions from the major sources (wetlands, biomass burning, anthropogenic) at the global scale using all available data (e.g. ICOS, NOAA data, data on ebas.nilu.no). This data includes measurements from the Zeppelin Observatory in the Arctic, to Troll in Antarctica, i.e. from pole-to-pole.
UTRICS: Understanding Temporal aerosol Radiative forcing - Implications for Climate Sensitivity and future warming
Global temperatures are rising due to the accumulation of greenhouse gases in the atmosphere. In addition to increasing greenhouse gas emissions, human activity has changed the composition of particles in the atmosphere. These have masked some of the warming caused by the greenhouse gases. How large is this cooling effect, and how has it changed over time?
Hydrogen is often considered a green energy carrier that has the potential to replace oil, but little is known about its environmental and climate impacts. Over the next three years, CICERO will therefore study what these impacts are.
The research group covers a broad range of topics within the atmospheric sciences. We are primarily a modelling group, studying radiative forcing of the climate system, and the role of gases, aerosols and clouds.