1st generation biofuels Flashcards
Two types of 1st generation biofuels:
- Biodiesel can be made from……..
- Bioethanol can be made from
- rapeseed, sunflower or soybean oil
- plants such as sugarcane, sugar beet a cereal crops (wheat, maize etc.)
Give 1 general argument for and 1 general argument against 1st gen biofuels
For - reduces greenhouse gases?
Against - damages the environment in other ways
Are 1st generation biofuels sustainable?
Give the 3 overarching reasons why
No
- Environmental damage
- Displacement of subsistence farmers
- Cost of food
How do 1st gen biofuels impact the environment and carbon footprint?
Deforestation of tropical rainforests to grow biofuel crops means some crops have a higher carbon footprint than fossil fuels.
……..… produces 105g of CO2 per mega joule of energy
Palm Oil
Soy bean produces ………. of CO2 per mega joule of energy
103g
Why is cost of food increasing as a result of biofuel crops?
- Grain is being used for biofuels rather than food
and less land is being used to grow food crops so food prices are increasing.
Fill in the Gaps:
In …….. world grain consumption for biofuels was ……..
by ……… this ……….. to ………
2000
1%
2010
increased
6%
Food prices have ………… between …….. and ……..
doubled
1990
2010
How many countries are growing biofuel crops in Africa?
30
How are biofuels impacting subsistence farmers in Ethiopia?
Government want to open land to foreign biofuel investors, threatening 85% of the population who are subsistence farmers.
In which country has 18% of the land been cleared for biofuels?
Indonesia
What are the environmental issues in Indonesia?
- Land being cleared for palm oil
- Species like the Orangutan are at risk of extinction
Give the name of a 1st generation biofuel that is potentially a more sustainable solution
Jatropha
Give 4 benefits of Jatropha
- Can be planted on most types of land so less land cleared, putting fewer species at risk
- Provides jobs
- Works alongside food production so food supply not limited and food costs not increasing
- It can be used to generate energy, which can be exported and/or the countries it is growing in can be self-sufficient.