- Rapidly increasing in recent years and has the potential to cause significant environmental impacts to both marine and terrestrial ecosystems .
Scientific research:
- Human presence necessary for research activities, waste disposal can contaminate fragile ecosystems; research stations can introduce non-native species
Shipping:
- Oil spills pose high-risk for marine contamination;
- introduction of non-native marine species via ballast water
- disturbance for wildlife species.
Fishing:
- Illegal, unreported and unregulated (IUU) fishing, particularly for toothfish species is major
- Over-fishing disrupts delicate marine food webs
Climate change and stratospheric ozone depletion:
- Resulting from human greenhouse gas emissions; rising air and water temperatures - changing sea ice extent, ice sheet retreat
- Melting permafrost