Module 5-livestock production & green house gasses

Question 1

how much does livestock globally contribute to dietary protein for humans

Answer 1

30%

Question 2

how much is it estimated livestock contributes to GHGs

Answer 2

7 to 18 percent

Question 3

why is it good to recognize of the major sources of GHG emissions in the livestock production process

Answer 3

will enable producers and researchers to target the more critical areas for change

Question 4

before changes can be put in place for animal ag what must happen

Answer 4

it will be necessary to evaluate their monetary cost and how the changes may affect GHG production by other industrial sectors.

Question 5

in aminal agriculture what is the order of biggest contributors to GHGs released

Answer 5

1) land use and land change
2) manure management
3) animal production
4) feeding production (excluding C released from land)
5) processing and international transport

Question 6

how much have GHG emissions decreased per KG of meat produced since 1960

Answer 6

its decreased by 60 percent since 1960

Question 7

what livestock accounts for the highest GHG release

Answer 7

the beef and dairy cow industry account for 60 percent of GHGs in the livestock sector

Question 8

what is the order for most emissions per unit of the end product

Answer 8

1) beef
2) milk and meat from small ruminants
3) cow milk
4) chicken
5) pork

Question 9

what things that can vary the intensity and amount of emissions for the total GHG emissions

Answer 9

Total GHG emissions and emission intensity vary greatly between areas around the globe as do the relative contributions from each of the livestock sectors

Question 10

how much CO2 does the livestock sector account for

Answer 10

The livestock sector accounts for 9% of global anthropogenic CO2 emissions

Question 11

where does the predominant source of CO2 from livestock come from

Answer 11

The predominant source of CO2 emissions attributed to livestock stem from land-use changes, particularly deforestation undertaken to increase pasture and arable land for the production of feed crops

Question 12

The anthropogenic-sourced CO2 emissions are 31% of the total CO2 emitted how much is directly linked to like stock

Answer 12

9% of total anthropogenic-sourced CO2

Question 13

how many tonnes of CO2 is released by livestock compared to other human activities

Answer 13

2.7 billion tons (co2 equivalent) co2 is released by livestock annually compared to other animals release additional 28 billion tons annually

Question 14

what is the greatest source of anthropogenic GHGs

Answer 14

burning fuel for electricity, heat, and transportation. which accounts for 60-70%

Question 15

how much methane do we release annually

Answer 15

5.9 billion tonnes (CO2 equivalent) annually

Question 16

how much methane released does livestock account for

Answer 16

Livestock account for 35 to 40% of the anthropogenic methane emissions or about 2.2 billion tonnes

Question 17

how much of the GHGs livestock release in the form of methane

Answer 17

Forty to fifty percent of livestock GHG emissions are in the form of methane

Question 18

where do most of the methane released by livestock come from

Answer 18

Enteric fermentation by ruminants is responsible for 82% of the methane release attributed to livestock; the remainder is a product of manure management

Question 19

what causes most of the CO2 in the atmosphere from livestock

Answer 19

deforestation

Question 20

how much of global N2O is livestock responsible for

Answer 20

The livestock sector is responsible for 65% of global anthropogenic N2O emissions

Question 21

how much N2O does livestock release into the atmosphere each year

Answer 21

2.2 billion tonnes (CO2 equivalent) each year

Question 22

what contributes to most of the N2O released from animal agriculture

Answer 22

1) manure application 2) manure storage

Question 23

how much of the global anthropogenic ammonia emissions does livestock contribute to

Answer 23

64%

Question 24

what happens with global anthropogenic ammonia emissions

Answer 24

it contributes to acid rain and the acidification of ecosystems

Question 25

what happens between ammonia emissions and nitrogen accumulation in the soil

Answer 25

A complex interaction exists between ammonia emissions and nitrogen accumulation in the soil and the net effect of ammonia production is regionally influenced.