Lecture 24

Question 1

What are the main green house gases?

Answer 1

1. Carbon Dioxide
2. Methane
3. Nitrous gases
4. F gases (most potent)

Question 2

Where is methane largely from?

Answer 2

From rumination

Question 3

Where is Carbon Dioxide mainly from?

Answer 3

Fuel and road transport

Question 4

What sectors contribute the most GHGs?

Answer 4

Agriculture and Energy

Question 5

What does the Emissions Trading Scheme look to do?

Answer 5

1. Policy tool to decrease emissions and meet emission targets
2. Adds cost to emissions
3. Agriculture was exempt

Question 6

What is the Life Cycle Assesment?

Answer 6

A framework for estimating/assessing environmental impacts attributed to the life of a product

Question 7

How is an environment equivalent expressed?

Answer 7

-As GHG or CO2 equivalent / kg of product

Question 8

Which meats have the lowest emissions vs the highest

Answer 8

L = chicken and pork 
H = beef

Question 9

In terms of carbon footprint, what food had the highest and what had the lowest?

Answer 9

L = tofu 
H = lamb

Question 10

What makes animal emissions worse than plant based foods?

Answer 10

They have a two process product conversion. First the plants need to be grown and made into feed then the animals have to eat this and then be killed. Most energy from these animals can’t be harvested as they are used to make products we can’t consume