Earth & Environmental Sciences
biofuel production
66%
ethanol
62%
productivity
45%
farm
33%
price
21%
energy market
17%
panel data
16%
effect
15%
energy policy
15%
livelihood
12%
livestock
12%
alternative energy
12%
maize
11%
greenhouse gas emissions
11%
market
9%
agriculture
9%
decision
8%
transition
8%
industry
8%
resource
7%
loss
7%
cost
6%
energy
6%
Engineering & Materials Science
Beef
100%
Ethanol
66%
Biofuels
59%
Productivity
52%
Farms
38%
Energy policy
15%
Agriculture
14%
Gas emissions
13%
Greenhouse gases
13%
Renewable energy resources
10%
Industry
5%
Costs
5%
Social Sciences
biofuel
63%
producer
56%
productivity
54%
farm
36%
energy
18%
market
14%
production process
14%
energy policy
13%
interconnection
13%
livelihood
12%
agriculture
11%
industry
7%
costs
7%
resources
5%