Greenpeace Germany and consultancy New Climate Institute have completed a first brief analysis of how to translate the goals of the international climate regime as determined by the Paris Agreement into the German context.
“Firstly, emissions reduction scenarios on a sectoral level from existing literature sources are compared. Since the literature on this topic does not cover 1.5°C scenarios for Germany to a sufficient degree, global scenarios and the total CO₂ budget available for 1.5°C are taken as a basis. Conclusions are drawn from the comparison of different emissions reduction scenarios.
Key messages
To be compatible with the long-term goals of the Paris Agreement …
- … global CO₂ emissions from energy generation and use as well as from agriculture and forestry will need to decrease +to zero by 2035. This way, temperature increase is likely to be kept “well below 2°C” and aim towards 1.5°C without taking the risk of needing to remove CO₂ from the atmosphere on a large scale in the future. Simultaneously, a smaller budget of emissions remains for sectors where (according to most models) a reduction in emissions would be exceedingly demanding, as is the case for non-CO₂ emissions from agriculture through livestock and soil.
- … developed countries such as Germany would have to decrease greenhouse gas emissions to zero earlier than the global average, i.e. CO₂ emissions before 2035.
- … the share of renewables in the energy mix (electricity production, building heating and cooling, industry, and transport) should reach 100% in Germany before 2035. The provision of electricity entirely from renewable sources should be achieved before 2030. This assumes the agreed phase-out of nuclear energy and no use of CCS.
- … the lignite and hard coal phase-out from electricity production should be achieved by around 2025 in Germany.
- … avoidance of travel, modal shift and increase in share of cars without combustion engines, e.g. through the development of electric mobility, are necessary beyond current targets in Germany.
- … 5% of Germany’s existing buildings need to be renovated to nearly zero energy standards per year, in addition to 100% of new stock conforming to nearly zero energy standards.
- … energy efficiency and electrification in industry have to be enhanced, in addition to research and development.
- … emissions from agriculture and forestry need to eventually be reduced to nearly zero as well, even if a little later than energy-related emissions.
A large part of the CO₂ budget available to limit temperature increase to 2°C or 1.5°C has already been spent. In order to limit the global average temperature increase to the above-mentioned levels, the cumulative emissions over this century are the determining factor. If emissions are too high now,CO₂ could theoretically still be removed from the atmosphere at a later point in time. However, the technology that could enable this subsequent removal, i.e. the utilization of biomass in combination with carbon capture and storage (CCS), entails significant problems and risks. This brief analysis consequently assumes that the emission budget has to be reached without these “negative emission” technologies.”
Compiled and translated from German by Reinhold Pape
https://newclimateinstitute.files.wordpress.com/2016/02/160222_klimaschu...
