Human causes of Climate Change

Question 1

Carbon Dioxide: How is it released/produced?

Answer 1

CO2 is released into the atmosphere when fossil fuels are burned

Question 2

Methane: Rice, padi fields

Answer 2

One of the main sources of food in high populated countries is rice, which is grown in padi fields. When rice in these fields decomposes, it releases methane

Question 3

Methane: Gross gross gross cattle farming point (dung and belching)

Answer 3

The increase in demand for beef has resulted in more methane
being released. Methane is released from the belching for cattle and animal dung.

Question 4

Nitrous Oxide: Increased car ownership

Answer 4

Increased car ownership leads to an increase in petrol and diesel
to fuel cars. Increased car exhaust emissions leads to more N2O.

Question 5

Carbon Dioxide: Cuttinng down trees (remember biology..photosynthesis..)

Answer 5

Trees store carbon and produce carbon as a bi-product of photosynthesis, so by cutting down and burning trees, lots of CO2 is released

Question 6

Carbon Dioxide: What can coal be used for?

Answer 6

Coal, a fossil fuel, can be used to generate electricity in power stations and to heat our homes

Question 7

Chlorofluorocarbons: Where are they found?

Answer 7

CFC’s are mainly found as a coolant in refrigerators and air conditioning units, but are also found in packing products like polystyrene.