Permafrost represents a large carbon reservoir that is seldom considered when determining global terrestrial carbon reservoirs.

Carbonate is found frequently in geologic settings and constitute an enormous carbon reservoir.

Human activity has large effects on the terrestrial biosphere, changing the way that it acts as a carbon reservoir.

Decomposing animals, including people, further add to the carbon reservoir in the soil.

The atmosphere is one of the Earth's major carbon reservoirs and an important component of the global carbon cycle, holding approximately 720 gigatons of carbon.

Other human-caused changes in the atmospheric carbon cycle are due to anthropogenic changes to carbon reservoirs.

The rivers are important for river flow regulation, flood mitigation, water storage, reduced soil erosion, biodiversity, carbon sequestration, carbon reservoir and microclimate regulation.

It is a shame that so many trees, recognised carbon reservoirs that they are, were sacrificed to print this text.

Estimates of the size of the total carbon reservoir in Arctic permafrost and clathrates vary widely.

Permafrost is a large global carbon reservoir which has remained frozen throughout much of the Holocene.