High

Black carbon deposition in stratosphere

Rocket exhaust deposits black carbon particles in the stratosphere, absorbing solar radiation and contributing to localised warming and ozone depletion.
Journal of Space Safety Engineering
Journal of Space Safety Engineering Academic
Peer-reviewed academic journal covering safety aspects of space activities.

Obligations (1)

Environmental impact assessment for launch sites

Medium
Launch operators must conduct environmental impact assessments covering soil, water, air quality, and wildlife impacts at and around launch facilities.
ESA Clean Space Initiative EU
ESA Clean Space Initiative Policy
European Space Agency programme targeting environmental sustainability in space activities.
Jurisdiction
EU
Open source (opens in a new tab)

Opportunities (2)

Electric propulsion systems

Medium
Adopt electric propulsion (ion or Hall-effect thrusters) to reduce propellant mass, eliminate toxic fuels, and enable more flexible mission profiles.
ESA Clean Space Initiative EU
ESA Clean Space Initiative Policy
European Space Agency programme targeting environmental sustainability in space activities.
Jurisdiction
EU
Open source (opens in a new tab)

Reusable launch vehicles

High
Support development of fully reusable launch systems to dramatically reduce per-launch environmental impact and cost.
ESA Clean Space Initiative EU
ESA Clean Space Initiative Policy
European Space Agency programme targeting environmental sustainability in space activities.
Jurisdiction
EU
Open source (opens in a new tab)