Is there a ‚fair‘ global warming of 1.5°C? – No.
Human activities have caused about 1.1° global warming compared to pre-industrial levels. If continuing at that pace, a warming of 1.5° will be foreseeable from approx. 2030 – 2052 . Climate change already has catastrophic effects on people and life on earth in general. This is a fact confirmed by climate research and scientists, who warn of any further warming. The mark of 1.5° is a limit value from international (climate) politics.
The changes caused by global warming mainly affect those who have contributed least to its causes. These are above all people from the global South, such as small farmers*, indigenous peoples, women and non-white people with a lower educational status and low financial resources, for whom migration is made difficult. They suffer from droughts and floods and therefore lose their land and livelihood. Many people need to seek refuge or are forced into extreme dependency and exploitation. Many die directly or indirectly as a result of the climate crisis.
At the same time the global North, especially European and North American countries, have made a massive contribution to climate crisis in the past, and they continue to do so today.
We are therefore aware that there cannot be a fair 1.5°. Every rise in temperature reinforces global and social injustices – including an increase of max. 1.5°.
Nevertheless, limiting the temperature to 1.5° is a political goal for which governmental representatives have been campaigning, those of especially affected countries as well. At 1.5° warming, the consequences of climate change will be less severe than at 2° warming (e.g. heat extremes, heavy rainfall, droughts, rising sea levels, extinction of species, ocean acidification and oxygen depletion).
The effects of the CO2-content in the atmosphere lead to a rise in temperature, after a certain delay in time. The greenhouse gases, which are present in the atmosphere today, may already lead to a warming of more than 1.5° in the future (compared to pre-industrial times).
We believe that, given the current situation, 1.5° warming is still a desirable goal, that we hope to achieve. However, this should not happen at the expense of already disadvantaged, marginalised and particularly affected groups. It has to be socially and globally equitable, also by taking historic and current circumstances into account.
Mentioning the 1,5°-goal, which is focused by politics and the media, we also try to connect with the ongoing public discourse.
 IPCC, 2018: Zusammenfassung für politische Entscheidungsträger. In: 1,5 °C globale Erwärmung. Ein IPCC-Sonderbericht über die Folgen einer globalen Erwärmung um 1,5 °C gegenüber vorindustriellem Niveau und die damit verbundenen globalen Treibhausgasemissionspfade im Zusammenhang mit einer Stärkung der weltweiten Reaktion auf die Bedrohung durch den Klimawandel, nachhaltiger Entwicklung und Anstrengungen zur Beseitigung von Armut. [V. Masson-Delmotte, P. Zhai, H. O. Pörtner, D. Roberts, J. Skea, P. R. Shukla, A. Pirani, W. Moufouma-Okia, C. Péan, R. Pidcock, S. Connors, J. B. R. Matthews, Y. Chen, X. Zhou, M. I. Gomis, E. Lonnoy, T. Maycock, M. Tignor, T. Waterfield (Hrsg.)]. World MeteorologicalOrganization, Genf, Schweiz. Deutsche Übersetzung auf Basis der Version vom 14.11.2018. Deutsche IPCC-Koordinierungsstelle, ProClim/SCNAT, Österreichisches Umweltbundesamt, Bonn/Bern/Wien, November 2018.
Here you will also find our critical reflection on the name "Klimaplan von unten „