Mitigating against climate change: Carbon capture and sequestration

Question 1

carbon capture is when

Answer 1

carbon is taken from its emission sources and pumped into underground locations

Question 2

impacts of carbon sequestration are: 5 items

Answer 2

• Less carbon dioxide being released as a result of combustion
• More carbon being stored in the lithosphere instead of the atmosphere
• This is a way of reviving fossil fuel stores, therefore making fossil fuel combustion a longer term energy supply than current methods
• Carbon pumped into saline aquifers may transfer carbon to the oceans, forming carbonic acid
• Carbon which dissolves into the oceans in this way will also be absorbed by phytoplankton

Question 3

carbon sequestration is

Answer 3

Carbon sequestration can be both natural and artificial. Carbon sequestration is the process whereby carbon dioxide is taken from the atmosphere and transferred to solid or liquid form

Question 4

a danger of carbon capture is the formation of

Answer 4

Pumping carbon dioxide into the ground builds up gas pressure below the surface. This can have a similar effect to volcanic eruptions, especially in lakes, where a build up of carbon dioxide due to CC cause a limnic to occur

Question 5

by 2050, global energy demands will have risen by…….%

Answer 5

50%

Question 6

coal, oil and gas provide ……% of the global energy

Answer 6

80%

Question 7

CCS has the potential to capture …..% of global CO2 emissions

Answer 7

50%