Lesson5 Food

Question 1

What proportion of our annual greenhouse gases come from growing things?

Answer 1

nearly one-fifth - 19% (9.7 billion tons)

Question 2

Of the 9.7 billion, how much comes from agriculture?

Answer 2

80%

Question 3

What does the remaining 2 billion tons come from?

Answer 3

De-forestation

Question 4

What are the main greenhouse gases from agriculture?

Answer 4

methane (CH4) and nitrous oxide (N2O)

Question 5

How bad is methane (CH4)?

Answer 5

It causes 28 times more warming per molecule than CO2.

Question 6

What is the source of methane (CH4) in agriculture?

Answer 6

Livestock digestion and growing rice.

Question 7

How does rice growing create methane (CH4)?

Answer 7

Rice paddies inhibit oxygen-absorption of the soil which creates bacteria that emits methane.

Question 8

Where does the nitrous oxide (N2O) come from?

Answer 8

Cow and pig manure.

Question 9

How bad is nitrous oxide (N2O)?

Answer 9

It causes 265 more warming than CO2.

Question 10

What make the agriculture challenge even greater?

Answer 10

By 2050, the world population projection is between 9 and 10 billion.

Question 11

What is the Good Food Institute?

Answer 11

A non-profit working to transform the environmental impact of our food.

Question 12

How many calories must you feed a chicken to get 1 calorie back?

Answer 12

9

Question 13

How much for pork and beef?

Answer 13

Pork → 15 calories
Beef → 30 calories

Question 14

What other problem is there from eating meat?

Answer 14

It requires much land.

Question 15

What is NOT the solution?

Answer 15

Rely on individuals to make better choices.
People rely on taste and price.

Question 16

What is the solution?

Answer 16

Technology applied to meat.

Question 17

How can this be done?

Answer 17

Making meat from plants.
and
Making meat from cells.

Question 18

Until 2009, veggie burgers were made from what?

Answer 18

The waste products of soy oil and the waste product of wheat.

Question 19

What is cultivated meat?

Answer 19

Cultivated directly from animal cells. It is animal meat.

Question 20

How long does it take a chicken to get to slaughter weight?

Answer 20

6-7 weeks after coming out of the shell.

Question 21

How long does it take a cow to get to slaughter weight?

Answer 21

Years (18-24 months)

Question 22

How long does it take cultivated meat to be ready to eat?

Answer 22

6-7 days

Question 23

What is an added benefit of these ways of making meat?

Answer 23

They are produced with low levels of CO2.

Question 24

With de-forestation, what is the primary way CO2 is emitted?

Answer 24

From the exposed soil. There is more carbon in soil than plant life.

Question 25

What does the Pachama company do?

Answer 25

Preserve and restore rain forests. https://pachama.com/originals/

Question 26

How does Pachama partner with companies?

Answer 26

If the company has carbon emissions they can offest by supporting Pachama re-forestation projects.

Question 27

How do they select the land to reforest?

Answer 27

1. How much carbon can be sequestered.
2. What are the wildlife benefits?
3. What are the social benefits? Jobs
4. RIsks (fire, etc.)

Question 28

The President of Pachama lives in the San Francisco area. What happened to him last year?

Answer 28

His house burned down in a forest fire.

Question 29

What is most promising in the area of growing things?

Answer 29

CO2 lasts thousands of years in the atmosphere. Nitrous oxide lasts 121 years. Methane just lasts 12 years. So, if we reduce methane emissions, we could have a significant impact.