Agriculture & Biology
life cycle assessment
82%
unit process
75%
case studies
54%
raw materials
54%
manufacturing
50%
energy
28%
environmental performance
21%
solid wastes
20%
natural gas
19%
environmental impact
15%
petroleum
15%
markets
10%
methodology
4%
Earth & Environmental Sciences
comparative study
58%
life cycle
52%
manufacturing
42%
raw material
41%
product
31%
modeling
26%
impact assessment
26%
energy
18%
environmental performance
14%
assessment method
13%
solid waste
12%
natural gas
11%
environmental impact
10%
petroleum
9%
market
9%
demand
8%
Engineering & Materials Science
Forms (concrete)
83%
Life cycle
55%
Raw materials
30%
Chemical reactions
23%
Wood
22%
Solid wastes
9%
Waste disposal
9%
Environmental impact
7%
Crude oil
6%
Natural gas
6%
Social Sciences
life cycle assessment
100%
raw materials
36%
manufacturing
29%
life cycle
24%
energy
16%
natural gas
7%
environmental impact
7%
performance
7%
market
4%
Medicine & Life Sciences
Life Cycle Stages
69%
Refuse Disposal
30%
Natural Gas
26%
Petroleum
21%
Chemical Compounds
Raw Material
52%
Energy
22%
Construction Material
21%
Solid Waste
19%
Natural Gas
18%
Reaction Yield
6%