What human activities might tend to increase the greenhouse effect?

Answer 1

1. Anything that uses fossil fuels (coal, oil and natural gas). Driving, using electricity, cooking, heating, cooling, etc.
2. Deforestation. Forests are cut down to grow palm oil, or to pasture cattle.
3. Cement manufacture, which is responsible for 5% of man's carbon dioxide. 36 tons of cement releases 20 tons of carbon dioxide.
4. Poor farming practices which release methane from cattle, pig farming and rice paddy fields.

Answer 2

1. Carbon dioxide emissions from the burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity. Carbon dioxide (CO2) is a greenhouse gas.
2. Deforestation, cutting down millions of trees that used to remove carbon dioxide from the air.
3. Agricultural practices like rice paddy farming, raising beef and dairy cattle, and pig farming, all of which release Methane, another powerful greenhouse gas.

Answer 3

1. Burning fossil fuels (coal, oil and natural gas) in industry, transport and to generate electricity.
2. Deforestation. We need trees to suck carbon dioxide out of the air.
3. Cattle raising. Forests have been cut down for pasture and the animals belch methane (a greenhouse gas 21 times stronger than carbon dioxide).

Answer 4

1. Deforestation. We cut down forests all over the earth.
2. Burning Fossil Fuel. We dig up coal, oil and natural gas and burn them all for industry, transport and to generate electricity. This releases long-held carbon that is an extra burden to the carbon cycle.
3. Our growing demand for red meat means that more and more cattle are grown, more and more land cleared for pasture, and more and more methane belches out from the animals and their waste. Methane is 25 times more powerful than carbon dioxide.

Answer 5

1. Deforestation.
2. Burning of fossil fuel (coal, oil and natural gas) in industry, transport and the generation of electricity, which releases carbon dioxide (CO2).