Earth & Environmental Sciences
renewable energy source
100%
bioenergy
95%
land
47%
demand
22%
solar power
21%
wind power
19%
carbon
19%
arable land
19%
wind turbine
18%
technological development
18%
power generation
17%
viability
16%
carbon sequestration
15%
sensitivity analysis
15%
crop
12%
food
11%
land use
11%
biomass
10%
policy
10%
economics
9%
cost
8%
evaluation
8%
comparison
7%
effect
4%
Agriculture & Biology
renewable energy sources
96%
bioenergy
95%
solar energy
52%
carbon
42%
wind power
33%
wind turbines
33%
power generation
30%
solar collectors
30%
arable soils
24%
computer simulation
23%
land use
20%
viability
16%
economics
14%
biomass
13%
Engineering & Materials Science
Renewable energy resources
68%
Carbon
64%
Land use
51%
Crops
47%
Solar energy
38%
Biomass
38%
Sensitivity analysis
37%
Wind turbines
37%
Wind power
37%
Power generation
36%
Economics
27%
Costs
16%