Most phosphorus is present in the labile soil pool. Phosphorus fertilizers are made from many different types of phosphate minerals. Under anaerobic conditions phosphate is always insoluble. The albedo value for snow is very high. Interstadials are temporary cold periods.
Isostatic rebound is a rise in sea level relative to the land.
Land transformation from full glacial conditions to the present has taken place only over the last 50,000 years. The Holocene period refers to the last 5,000 years when human activity increased dramatically. Isostatic rebound in Hudson Bay region. Coniferous forests were widespread on the islands of the Canadian Archipelago in the late Tertiary period. The Bering land bridge joined Alaska and Russia during the Wisconsin glaciation.