Carbon - Sequestration Flashcards
What is sequestration?
The process and long-term capture of atmospheric carbon dioxide by either human induced or natural means.
Name 4 types of natural sequestration.
Reforestation.
Mixing Ocean Layers.
Restoring Peat Bogs.
Wetland Restoration.
Agriculture.
Fertilisation.
Iron and Urea.
Name 4 types of human-induced sequestration.
Biochar.
Acid Neutralisation.
Deep Basalt Storage.
Carbon Capture and Storage (CCS).
Bioenergy and CCS (BCCS).
How does reforestation sequestrate?
By planting more trees, more carbon dioxide will be extracted from the atmosphere via respiration and photosynthesis and released as oxygen.
How does mixing ocean layers sequestrate?
Cold water can absorb more carbon dioxide than warm water, it is also more dense meaning it sinks and sits below the warmer waters. By mixing ocean layers (via wind-driven turbulence), the colder water can rise to the surface and absorb more carbon dioxide from the atmosphere then sink again to store.
How does the restoration of peat bogs sequestrate?
Globally, peatlands generally store more carbon than all forests combined. The plants atop of peat bogs never fully decompose which stores the carbon dioxide that would have been absorbed via photosynthesis. They then sink, adding to the peats natural nutrient content.
How does agriculture sequestrate?
Carbon captured by plants via photosynthesis and respiration can be used as a vital way to sequestrate. In the long-term, the aim is to store carbon dioxide within the soils, often achieved through the cultivation of new crops.
How does iron and urea sequestrate?
