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Overview

Messungen auf einem Feld bei Sonnenaufgang
© Bärbel Tiemeyer

In the Thünen topic “Climate and Air” we have three focal points:

  • We compile the annual national greenhouse gas inventories for agriculture, land use and forestry/wood, as well as other national emission inventories (e.g. ammonia).
  • Climate protection: We are investigating how to reduce greenhouse gas emissions and increase carbon sequestration.
  • Adaptation to climate change: We are investigating how climate change will affect agriculture, forestry, and fisheries, and how these sectors can adapt to climate change.

All content

Eine Anlage zur Abluftwäscher zur Abscheidung von Staub, Ammoniak und Geruch aus der Schweinehaltung
Exhaust air treatment in animal housing

Exhaust air from animal husbandry contains particulate matter, bio-aerosols, ammonia and odorants – all in all undesirable substances. Approved exhaust air treatment systems can reduce these emissions effectively.

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Eine Anlage zur Abluftwäscher zur Abscheidung von Staub, Ammoniak und Geruch aus der Schweinehaltung
The situation in pig keeping

Odorants and particulate matter can be removed efficiently by bio filters. Problematic, however, is the separation of ammonia. In the meantime, many pig farmers have invested in exhaust air treatment systems.

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The situation in poultry keeping

Exhaust air treatment in poultry keeping is characterized by high air volume flows and high particulate matter loads. Particulate matter results in problems in air scrubbing Which is why a selective upstream dust removal is pursued. Due to the high ...

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[Translate to English:]
Bioaerosols : Tiny particles, big effect

In addition to gaseous emissions livestock also releases airborne microorganisms such as bacteria or molds. These bioaerosols are suspected to affect the health of residents in the immediate vicinity of stables. The evidence is still insufficient, ...

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Einfach gezeichnete Fische in verschiedenen Grüntönen auf einem grünen Hintergrund
The signicficance of climate change for the oceans and the fisheries

Climate change leaves visible marks not only on land: Also the ocean ecosystems will change, having consequences for the fishing sector and aquaculture.

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[Translate to English:]
Emission inventories: Accounting for climate protection

Being a member of international agreements on climate protection and air pollution control it is Germany’s declared aim to reduce the output of climate-harmful gases (Greenhouse Gases) and air pollutants. Scientific inventories provide the required ...

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Ein Landwirt bringt Dünger auf sein Feld
Emissions of ammonia from agriculture

The emission of ammonia leads to the formation of harmful fine dust through reaction with other air pollutants. Via the input of nitrogen, ammonia also leads to the eutrophication of near-natural ecosystems. Through further conversion processes, ...

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A black and white cow stands with other cows in the background on a green meadow
Emissions of greenhouse gases from agriculture

In 2024, German agriculture was responsible for the emission of about 53.3 million tons of carbon dioxide equivalents. This corresponds to 8.2 percent of the greenhouse gas emissions in Germany. Main sources are emissions of methane from animal ...

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Ausgebleichte Korallen
Impact on the fishing sector and aquaculture

In collaboration with Cambridge University, the Thünen Institute of Sea Fisheries has summarized important key findings on fisheries management and aquaculture found in the IPCC Assessment Report.

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Nordsee-Karte mit vebesserter thermischer Eignung für Kabeljau im Norden und verschlechterter im Süden.
Climate change: some come, some go

Climate change has arrived in European seas such as the North Sea and the Baltic Sea in a noticeable and measurable way. Environmental conditions are changing rapidly. As a result, ecosystems and fish stocks are changing in their composition and ...

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Portrait einer rotbunten Kuh auf der Weide
Climate protection in livestock farming

Reducing greenhouse gas emissions in livestock farming is a small-scale task. We analyse starting points and potentials for reduction and evaluate the economic impacts beyond Germany.

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Tortendiagramm
GHG emissions in the milk value chain

Climate protection is on everyone's lips, including in the dairy industry. Scientists from the Thünen Institute of Farm Economics point out the challenges in determining and evaluating farm-individual GHG emissions and reductions on German dairy ...

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[Translate to English:] Zwei Bilder zur Rinderhaltung: Links in intensiver Haltung im Stall in Deutschland, rechts auf der Weide in Brasilien.
Thinking climate protection globally – The example of beef

How great is the potential for reducing GHG emissions in beef production? A comparison of typical production systems in Germany and Brazil shows that the German system performs better - even when Brazil uses its large reduction potentials.

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Der Tintenfisch Illex coindetii.
Cephalopods in climate change

In many regions around the world, a decline in predatory fishes and rising ocean temperatures are favoring cephalopod population trends. Even in the North Sea, traditionally not known for large cephalopod abundances, squid biomass is increasing. What ...

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Ein Wald mit gelbbraunen Heidelbeersträuchern und abgestorbene Fichten, die über grüne Nadelbäume ragen.
From Sink to Source

The current projections of greenhouse-gas emissions show that the sector Land Use, Land-Use Change and Forestry (LULUCF) takes up substantially less carbon dioxide than assumed previously. Questions and answers regarding this in our FAQ.

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[Translate to English:]
High greenhouse gas emissions from land use

Greenhouse gas emissions in Germany declined in 2023. However, new data show that emissions from the land use, land use change and forestry (LULUCF) sector are higher than previously assumed.

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[Translate to English:]
From Sink to Source 2024

The current projections of greenhouse-gas emissions show that the sector Land Use, Land-Use Change and Forestry (LULUCF) takes up substantially less carbon dioxide than assumed previously. Questions and answers regarding this in our FAQ.

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Emissions of greenhouse gases from land use, land-use change and forestry (LULUCF)

In 2024, Germany's land use sector remained a significant source of greenhouse gases (GHG), with net emissions of 57.8 million tonnes of CO₂ equivalents (million tonnes CO₂-eq.). By way of comparison, net emissions from land use, land-use change and ...

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