Reverse emissions or influence solar radiation: Is “geoengineering” worthwhile, feasible and if so, at what price?

The aim of the Paris Agreement is to limit global warming to well below 2 degrees Celsius, if possible even 1.5 degrees Celsius. Various scenarios show that very great efforts are necessary to achieve these goals through emission reduction measures alone. This motivates the search for additional solutions. Technical interventions in the climate system, often referred to by collective terms such as “geoengineering” or “climate intervention”, are therefore discussed.

Reverse emissions or influence solar radiation: Is “geoengineering” worthwhile, feasible and if so, at what price?
Immagine: ProClim

However, most of these measures are associated with costs, risks and undesirable side effects that have so far been very difficult to assess. While some measures only exist in theory, others have been tested in small format, but nevertheless there is a lack of knowledge about the effects of an application on the required large scale. Since the measures would not have the same effects in different parts of the world, ethical questions of global and regional justice are also particularly important and should be covered by international regulations.

Fonte: Swiss Academies of Arts and Sciences (2018) Reverse emissions or influence solar radiation: Is “geoengineering” worthwhile, feasible and if so, at what price? Swiss Academies Factsheets 13 (4). www.proclim.ch/id/hWSRV

Temi associati

ProClim Flash 69
ProClim Flash 69

La 69e édition du ProClim Flash, magazine suisse sur le climat et le changement global, aborde le thème de la géo-ingénierie sous différents angles : quels sont le potentiel, les

Immagine: ProClim
Un frein à main pour le changement climatique ?
Un frein à main pour le changement climatique ?

La géo-ingénierie vise à lutter contre le changement climatique au moyen de processus techniques à grande échelle. Fondamentalement, il y a deux approches : soit le CO2 est éliminé de

Immagine: ProClim
Inondation
L'objectif climatique du 1,5 degré exige une action rapide et rigoureuse et des émissions nettes de CO2 nulles

Afin de limiter le changement climatique à 1,5 degré Celsius, les émissions nettes de CO2 dans le monde doivent être réduites à zéro d'ici 2050 au plus tard. Cela n'est

Immagine: Pxhere, CC0

Categorie

  • CO2 (biossido di carbonio)
  • Geoingegneria
  • Ingegneristica
  • Sviluppo tecnologico

Contatto

Dr. Urs Neu
SCNAT
ProClim − Forum per il clima e i cambiamenti climatici (ProClim)
Casa delle Accademie
Casella postale
3001 Berna

+41 31 306 93 52
E-mail


SCNAT
ProClim − Forum per il clima e i cambiamenti climatici (ProClim)
Casa delle Accademie
Casella postale
3001 Berna

+41 31 306 93 50
E-mail

The English version of this fact sheet is only available online. The German and French versions can be ordered for free as printed editions: proclim@scnat.ch

Inglese, Tedesco, Francese