Limiting the increase in the global mean temperature to below 2 degrees compared to the pre-industrial level is fundamentally possible - this is shown by the IPCC in its special report on 1.5 °C global warming.

Important measures are rapid and far reaching reductions of all greenhouse gas emissions, above all carbon dioxide. In addition, carbon dioxide must be extracted from the atmosphere. It can be stored in natural sinks such as soils and forests, for example. Furthermore, the carbon dioxide extracted from the atmosphere can be converted back into energy sources through chemical processes.

In Net-Zero-2050, Cluster I of the Helmholtz Climate Initiative, respective strategies and new approaches are scientifically examined and evaluated in four projects with regard to the German framework. In addition, two case studies are carried out with external stakeholders from the field.
The results flow into a pilot roadmap for a CO2-neutral Germany by 2050 and are intended to drive the public and political debate about CO2 neutrality at various levels - also in the Helmholtz Association itself.

Netto-Null-2050 currently focuses exclusively on CO2 emissions and the associated CO2 neutrality.

Ein Radfahrer auf einsamer Straße in den Bergen
Ein Radfahrer auf einsamer Straße in den Bergen
Roadmap - Ein Radfahrer auf einsamer Straße in den Bergen
©
David Marcu / Unsplash

Roadmap & scenarios

Project 1 consists of two sub-projects, which, in a close exchange of information, evaluate the most promising contributions towards a CO2-neutral Germany by 2050, with reference to the German framework. The results are shown in a pilot roadmap.

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Power plant under blue sky
Power plant under blue sky
Power plant under blue sky
©
Trajan61 / Pixabay

Circular CO2 approaches

The project examines the potential of two complementary approaches to extract CO2 from the atmosphere and convert it into energy carriers through renewable energies.

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Sediment
Sediment
Underground storage - Sediment
©
Оксана Скиданова / AdobeStock

Potential and integration of underground storage solutions

With the conversion of the energy system from fossil fuels to renewable energies, energy storage is becoming increasingly important. The project therefore evaluates the technically and economically feasible potential from different perspectives.

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Meadow in evening light
Meadow in evening light
Meadow in evening light
©
Pixabay

Storage solutions in nature

Natural greenhouse gas sources and sinks play an important role in the overall CO2 budget. Both, CO2 emissions and storage often depend on choices made in management and land use.

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