Earth & Environmental Sciences
alternative energy
82%
alternative material
17%
bioenergy production
17%
calculation
6%
cooperation
11%
energy resource
13%
energy use
94%
environmental effect
12%
environmental sustainability
13%
material
20%
method
5%
modeling
5%
natural resource
10%
planning
23%
policy
7%
product
30%
recycling
39%
resource use
13%
savings
12%
substitution
33%
tire
14%
Agriculture & Biology
bioenergy
12%
cooperatives
11%
ecosystem services
11%
energy
6%
energy resources
15%
environmental sustainability
13%
methodology
6%
natural resources
12%
planning
31%
purchasing
12%
recycling
42%
renewable energy sources
100%
stems
7%
tires
13%
waste reduction
17%
Engineering & Materials Science
Energy resources
12%
Environmental impact
12%
Industry
38%
Natural resources
15%
Planning
24%
Purchasing
14%
Recycling
50%
Substitution reactions
37%
Sustainable development
11%
Tires
12%
Chemistry
Energy
42%
Recycling
80%
Reduction
10%
Substitution Reaction
42%