Earth & Environmental Sciences
carbon emission
73%
artifact
62%
alternative fuel
47%
policy
44%
automobile
33%
decision making
27%
demand
24%
services
23%
methodology
21%
air
20%
need
19%
Business & Economics
System of Systems
100%
Systems Approach
74%
Carbon Emissions
37%
Alternative Fuels
25%
Automobile
20%
Interdependencies
17%
Decision Making
16%
Air
15%
Interaction
10%
Methodology
9%
Engineering & Materials Science
System of systems
91%
Carbon
27%
Alternative fuels
20%
Automobiles
17%
Decision making
13%
Air
10%
Social Sciences
artifact
18%
system of objectives
18%
motor vehicle
10%
air
8%
demand
7%
decision making
6%
methodology
5%
interaction
4%