UK emissions of nitrous oxide

Question 1

What percentage do countries need to reduce their ghg emissions to?

Answer 1

Reduce by 25-40% below 1990 levels by 2050

Question 2

What is responsible for 10% of global ghg emissions?

Answer 2

EU-27

Question 3

How much does nitrous oxide contribute to global anthropogenic radiative forcing?

Answer 3

10%

Question 4

What contributes to N2O in atmosphere?

Answer 4

Production of acidic acid and nitric acid
Agriculture
Microbial processes in soils and aquatic systems
Fuel consumotion

Question 5

What process in soils and aquatic systems is responsible for emissions? What emissions? What percentage?

Answer 5

Microbial processes are responsible for 89% of the annual global N2O emissions

Question 6

What industrial production contributed to the UK’s annual N2O emissions in 1990? How much has it declined by? How?

Answer 6

Production of nitric and adipic acid contributed to 37% of the UK’s annual N2O emissions in 1990. Declined by 90% and only accounts for 3%. Achieved by reducing production rates and removing N2O from adipic acid by thermal decomposition

Question 7

How much did the energy sector (fuel consumptioN) contribute to the total UK N2O emissions in 2009? How much has it declined by?

Answer 7

13%. Decreased by 28% since 1990

Question 8

How much has the agricultural sector contributed to N2O emissions in the UK?

Answer 8

78% in 2009

Question 9

What are the main N2O sources in the agricultural sector?

Answer 9

Fertiliser and manure application to soils. Also a large contribution from livestock production

Question 10

How is nitrogen lost in the agricultural sector?

Answer 10

A proportion of fertilizer, manure, sewage sludge and excreta Nitrogen is lost through leaching and surface runoff to water sources