The IRMP examines how cumulative impacts are affecting the Delta. While not able to determine direct causality, we are able to define the main stressors to the Delta system. Multiple large-scale environmental pressures are driving change:
Hydroelectric development is altering water availability in the Delta
Hydroelectric projects like the new Site C dam on the Peace River - operational in September 2024 - disrupt natural ice-jamming that replenishes Delta wetlands, altering the Delta’s natural water availability.
Climate change is drying out the landscape
The region has experienced six of the hottest years on record, leading to net moisture loss through increased evapotranspiration. Timing of ice formation and melt, precipitation type and amount, and river flow are all changing.
Oil sands extraction is polluting and overusing water
Extracting and processing bitumen along the Athabasca River has intensified water use and ecosystem risks. Oil sands operations now withdraw hundreds of millions of cubic meters annually, produce enormous volumes of toxic tailings, and have led to major spills, all of which threaten Indigenous livelihoods, rights and the health of the Delta.