Management Strategies to Protect Carbon Cycle (CCS (Trapping methods (Post…
Management Strategies to Protect Carbon Cycle
Carbon capture and stroage
Permanent storage of CO2
Technology made in 1970's in the USA
Has not been preformed at large scale yet
Post-combustion: CO2 is separated from the flue gas of the power station by bubbling the gas through an absorber column packed with liquid solvents (such as ammonia) that preferentially take out the CO2.
Injected in porous rock underground and covered by dense up rock to stop CO2 migrating
Oxyfuel: When coal, oil or natural gas is burned in normal air, the amount of CO2 produced is between 3-15% of the waste gases, depending on the conditions.
Pre-combustion: coal is gasified to produce a synthetic gas made from carbon monoxide and hydrogen. The former is reacted with water to produce CO2, which is captured, and more hydrogen.
Boundary Dam Carbon Capture Project
In the fall of 2014, Boundary Dam Power Station near Estevan, became the first power station in the world to successfully use Carbon Capture and Storage (CCS) technology.
Wetlands play an important role in landscape function, including cycling of carbon, water and nutrients, food and fibre production, water purification, regulation of flows, provision of habitats, and tourism and recreation services.
Include 6-9th of Earths land surface and 35% terrestrial carbon pool
Destruction of wetlands due to population growth, economic development and urbanisation has led to a transfer of CO2 and CH4 to atmosphere.
Restoration shows that wetlands can hold and average of 3.25 tonnes C/ha/year. Now 112,000 ha have been targeted to restore in Canada should eventually sequester 364,000 tonnes C/year
Climate change and need to reduce CO2 emissions has led to re-evaluation of importance of wetlands as carbon sinks
Restoration raises local waterlevel(table) to recreate waterlogged conditions. Coastal areas can breach sea defences to create marshes
Involves planting trees in deforested areas or in areas that have never been forested