climate change mitigation

Question 1

carbon capture and storage

Answer 1

• it can capture up to 90% of co2 emissions produced by fossil fuels
• catpuring the co2 can help seperate the co2 from gases produced in electricity
• transporting the co2 by pipelines or ship

Question 2

changes in rural land use

Answer 2

-GRASSLANDS- these offer a global green house gas mitigation potential as carbon could be sequestered into soil. these can be improved by:
avoid overstocking grazing animals, irrigation can improve plant productivity
-CROPLANDS- helps increase soil organic carbon this can be done by:
reducing ploughing-avoid the accelerated decomposition of organic matter
-rotation of cash crops to help increase biomass returned to soil
-FORESTED LAND AND TREE CROPS=forests are able to reduce co2 emissions to the atmosphere by storing lots of carbon
-reforesting degraded land increases biomass density so increases carbon density

Question 3

improved aviation practices

Answer 3

• in 2013 the aviation industry produced 705 million tonnes of carbon
  possible solutions to reduce co2 emissions:
  100% occupancy of seats
  increased engine efficiancy
  carbon capture within engines
  avoid circling and queuing

Question 4

local and individual strategies

Answer 4

• people can use less cars
• improve homes, insulation, double glazing
• increase use of public transport

Question 5

regional and national strategies

Answer 5

• governments can invest in carbon capture and storage
• uks target is to reduce GHG emissions by 80% by 2050
• afforestation and restoring degraded forests can increase carbon uptake

Question 6

global scale

Answer 6

• Paris climate deals-aims to limit increase of global temps to 2degree above pre industrial levels, they meet every 5 years
• international carbon trading schemes- countries and businesses are given a limit on the emissions they can produce
• if they produce less they can sell their extra credits if they produce more they need to buy more credits