A team of researchers around Dr. Florian Ziemen in the department "The Ocean in the Earth System" at the Max Planck Institute for Meteorology (MPI-M) found that Heinrich events, climate changes during the last ice age, were caused by a succession of the effects of two mechanisms: iceberg calving, having effects on the ocean, and ice sheet elevation loss, having effects on the atmosphere. Using a novel model setup, they were able to study the relationship between the two individual effects. They…
Observation-based estimates show the oceanic uptake of carbon dioxide is varying substantially in time, largely driven by the variability in the surface ocean CO2 content. A new study by Dr Peter Landschützer and Dr Tatiana Ilyina from the department “The Ocean in the Earth System” at the Max Planck Institute for Meteorology (MPI-M) with co-author Dr Nicole Lovenduski investigates the mechanisms and timescales dominating the marine partial pressure of CO2 (pCO2) variability from 1982 through…
From 20 January through 20 February 2020, the EUREC4A (Elucidating the role of clouds-circulation coupling in climate) field study investigated trade wind clouds in the Tropical Atlantic.
The Max Planck Institute for Meteorology (MPI-M) develops complex Earth system and climate models. To investigate and understand processes, the scientists also work with conceptual models in a variety of ways.
In a ground-breaking study Dr Thomas Kleinen and Prof. Victor Brovkin from the Department "The Land in the Earth System" at the Max Planck Institute for Meteorology (MPI-M), in collaboration with lead author Dr Claire Treat from the University of Eastern Finland (Kupio, Finland), who visited the department in 2017, and 30 further scientists from Europe and North America, have collected evidence of peatlands spanning the past 125000 years from published descriptions of geological deposits. They…
In a new study, a team of researchers around Alexander Winkler and Prof Victor Brovkin from the department “The Land in the Earth system” at the Max Planck Institute for Meteorology (MPI-M) show that most Earth system models (ESM) underestimate the response of Arctic plant productivity to rising atmospheric carbon dioxide (CO2) concentration. These models, which serve as the scientific basis for the IPCC Assessment Reports, likely also underestimate future carbon uptake by photosynthesis - a…
A new working group on drivers of tropical circulation has been introduced in the department "Atmosphere in the Earth System" at the Max Planck Institute for Meteorology (MPI-M). The group is led by Dr Ann Kristin Naumann and is a joint project between the MPI-M and the Universität Hamburg. The group is also part of Hamburg's new cluster of excellence on "Climate, Climatic Change, and Society" (CLICCS).
The MiKlip project, led by Prof Jochem Marotzke and coordinated by Dr Sebastian Hettrich at the Max Planck Institute for Meteorology, has made its decadal climate forecasts for 2019–2028 available online.
A new study, published in Nature by German scientists from Jena and Hamburg, with lead author Prof. Markus Reichstein, managing director at the Max Planck Institute for Biogeochemistry (MPI-BGC) and co-author Prof. Bjorn Stevens, director and head of the department “The Atmosphere in the Earth System” at the Max Planck Institute for Meteorology (MPI-M), shows that artificial intelligence (AI) can help to better understand climate and the Earth system. The scientists show that specifically deep…
In a study performed within the BMBF-funded MiKlip project ALARM Dr Matthew Toohey from GEOMAR Helmholtz Centre for Ocean Research in Kiel, Dr Hauke Schmidt and Dr Claudia Timmreck from the Max Planck Institute for Meteorology in Hamburg, and Prof Kirstin Krüger from the University of Oslo have investigated together with ice core and tree ring experts from Switzerland, the UK and the USA how explosive extratropical eruptions impact the surface climate in the Northern Hemisphere. The results…
Recently, Prof Jochem Marotzke, managing director at the Max Planck Institute for Meteorology (MPI-M) and head of the department “The Ocean in the Earth System” published in a recent paper in WIREs that even if CO2 emissions fall after 2020, there is a one-in-three chance that global surface warming will speed up until 2035 instead of slowing down, and we cannot predict which state we will be in.
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