Earth & Environmental Sciences
energy use
37%
data envelopment analysis
36%
city
33%
urban population
26%
sustainable development
24%
economy
22%
solid waste
21%
waste management
21%
energy
20%
energy efficiency
19%
analysis
18%
recycling
18%
mitigation
18%
sustainability
17%
developing world
16%
manufacturing
15%
climate change
13%
industry
11%
economic growth
11%
human development index
11%
energy policy
8%
informal sector
5%
development economics
5%
social equity
5%
economics
5%
opinion
5%
social welfare
5%
energy economics
5%
productivity
5%
pollution abatement
5%
urban policy
5%
social condition
5%
Engineering & Materials Science
Data envelopment analysis
100%
Sustainable development
57%
Energy efficiency
44%
Climate change
34%
Industry
30%
Energy policy
29%
Developing countries
29%
Economics
23%
Bioeconomy
19%
Productivity
19%
Regression analysis
17%
Electricity
14%
Personnel
13%
Stabilization
9%
Energy security
9%
Carbon monoxide
8%
Pollution
7%
Energy utilization
5%
Business & Economics
Solid Waste Management
33%
Regional Analysis
30%
Urban Population
29%
Energy
29%
Energy Use
25%
Emerging Economies
25%
Climate Change
24%
Mitigation
23%
Energy Efficiency
18%
Threat
17%
Qualitative Methods
15%
Manufacturing Industries
15%
Empirical Methods
14%
Sustainable Development
13%
Economic Growth
12%
Energy Policy
8%
CO2 Emissions
7%
Small and Medium-sized Enterprises (SMEs)
6%
Malmquist
5%