Illustrative scenario
What if Arctic took a scaled approach to “Global emission reductions”?
Starting point · documented
The Arctic is warming much faster than the global average, and summer sea ice has declined markedly since satellite records began.
The intervention · documented
Global emission reductions
Limiting global warming is the principal way to slow Arctic change.
Determines the extent of future ice loss.
Schematic direction of change
Adaptation reduces exposure and harm, but the underlying hazard continues to be shaped by global greenhouse gas emissions.
Causes this could address
- Greenhouse gas emissionsGlobal warming drives Arctic change.
- Ocean and atmospheric heat transportWarm water and air moving north add heat.
Impacts that could ease
- Sea ice declineLoss of habitat for polar bears, seals and walrus.
- Global sea level riseMelting land ice from Greenland raises seas worldwide.
Wider reach at higher intensity is an assumption of this illustration.
How change might unfold
Near term
Early warning and preparedness measures can reduce harm quickly.
Medium term
Infrastructure and urban design changes reduce exposure as they are built out.
Long term
Protection must keep pace with a hazard that continues to intensify unless global emissions fall.
Faded stages are less likely to be reached at scaled intensity.
What this would not change
Local action cannot stop global warming; without global emission cuts the baseline pressure keeps rising.
What it depends on
- Sustained funding and institutional capacity
- Consistent enforcement and monitoring
- Local stakeholder support
- Participation of affected communities
ILLUSTRATIVE SCENARIO — NOT A SCIENTIFIC PREDICTION. Built from documented causes, impacts and solutions plus general qualitative patterns. It contains no modelled numbers.