The Amazon

Question 1

what fraction of the world’s biomass is in the Amazon?

Answer 1

1/5

Question 2

How many trees are in the Amazon?

Answer 2

300 billion

Question 3

How many countries is the Amazon in?

Answer 3

9

Question 4

What fraction of the world’s carbon is stored in the Amazon?

Answer 4

1/5

Question 5

How much of the Amazon has been lost since 2005?

Answer 5

17%

Question 6

How much rainfall do some areas of the Amazon have annually?

Answer 6

6000mm

Question 7

What is the ITCZ?

Answer 7

intertropical convergence zone; where two winds, coming from area of high pressure between hadley and ferrel cells, meet, at an area of low pressure between 2 hadley cells

Question 8

What % of photosynthesis occurs in the Amazon?

Answer 8

30-50%

Question 9

How much is biomass increasing annually in the Amazon?

Answer 9

0.5%

Question 10

How much carbon does the Amazon absorb?

Answer 10

2.2 billion tonnes

Question 11

What are 2 threats to the Amazon?

Answer 11

• climate change
• deforestation

Question 12

How much is temperature expected to increase in the Amazon by 2050?

Answer 12

2-3C

Question 13

If all fossil fuel emissions stopped, how much warming has been committed to?

Answer 13

2C

Question 14

How many trees would die if temperatures rose by 2C?

Answer 14

20-40%

Question 15

How many trees would die if temperatures rose by 3C?

Answer 15

75%

Question 16

What is the biggest cause of deforestation in the Brazilian Amazon?

Answer 16

pasture, 63%

Question 17

What % of Brazil’s greenhouse gas emissions are from deforestation?

Answer 17

75%

Question 18

How does burning trees impact precipitation?

Answer 18

reduced due to more condensation nuclei and fewer heavy clouds

Question 19

How much did fires increase in the first 9 months of 2020 compared to 2019?

Answer 19

13%

Question 20

If environmental and deforestation policies from 2002 continue, what is the predicted impact on rainfall by 2050?

Answer 20

Decrease by 21% in dry seasons and 12% in wet seasons

Question 21

How much rainfall is recycled in tropical rainforests?

Answer 21

25 - 56%

Question 22

What percentage of Brazils electricity is from hydroelectric power?

Answer 22

65%

Question 23

What percentage of Brazil’s land is protected under environmental law?

Answer 23

25%

Question 24

What is the average deforestation rate in the Amazon?

Answer 24

1.4 million hectares

Question 25

What did the vice president claim the anticipated increase in deforestation was? What was me increase between 2019 - 2020?

Answer 25

20% anticipated; 9.5% real

Question 26

How does deforestation and climate-change impact rivers?

Answer 26

- Reduces river discharge in the long-term - flash flooding - kill off species

Question 27

How do changes to the Amazon impact the Carbon cycle?

Answer 27

- surface runoff and soil erosion - decrease respiration - carbon released in fires - less photosynthesis - less decomposes - small inefficient plants

Question 28

How much did Brazil cut deforestation by, by 2005?

Answer 28

80%

Question 29

How much untouched forest do landowners have to preserve?

Answer 29

80%

Question 30

What percentage of the Amazon's water stays in the Amazon?

Answer 30

50-80%