Earth and Planetary Sciences
Latvia
100%
Investigation
65%
Waste
64%
Assessment
53%
Landfill
49%
Model
39%
Aspect
39%
Greenhouse Gas Emission
36%
Amount
33%
Agriculture
33%
Tool
33%
Waste Management
32%
Product
32%
Packaging
30%
Utilization
29%
Country
29%
Biomass
28%
Fuel
27%
Circular Economy
26%
Option
25%
Show
25%
Political Economy
24%
Policy
24%
Paper
22%
Municipal Solid Waste
22%
District Heating
21%
Dynamic Models
21%
Packaging Waste
20%
Decision
20%
Biogas
19%
Efficiency
19%
Emissions
18%
Deposit
18%
Metropolitan Area
18%
Environmental Impact
18%
Management Systems
18%
Recycling
17%
European Community
17%
Value
16%
Consumer
16%
Time
16%
Energy Production
16%
Energy Recovery
16%
Rate
15%
Climate
15%
Renewable Energy
14%
Methane
14%
Simulation
14%
Residue
13%
Solid
13%
Engineering
Methanation
31%
Economics
29%
District Heating System
28%
Environmental Impact
22%
Development
21%
District Heating
18%
Renovation
18%
Heating Capacity
18%
Global Warming
18%
Buildings
18%
Biogas
18%
Sustainable Development
18%
Catalyst
17%
Supports
13%
Energy Source
13%
Heat Demand
12%
Fuel
12%
Recovery
12%
Performance
11%
Energy Demand
11%
Research
10%
Products
10%
Heat Pump
10%
Biomass
9%
Bioconversion
9%
Sustainable Energy
9%
Technique for Order Preference by Similarity to Ideal Solution
9%
Heating Energy
9%
Ecodesign
9%
Estimation
9%
Upgrading
9%
Power Grid
9%
Mining
9%
Syngas
9%
Integrated System
9%
Biomass Gasification
9%
Renewable Energy Source
9%
Environmental Aspect
9%
Density
9%
System Efficiency
9%
Oil
9%
Efficiency
9%
Recycling
8%
Reduction
8%
Models
7%
Reactor
6%
Energy Efficiency
6%
Reactor Design
6%
Realization
6%
Investment
6%
Social Sciences
Agriculture
31%
Evaluation
29%
Sustainability
21%
Analysis
18%
Case Studies
17%
Gases
16%
Danish
15%
Criterion
13%
Carbon
13%
Application
13%
European Union
13%
Economic and Social Development
13%
District Heating
12%
Time
12%
Comparison
11%
Climate Change
11%
System Dynamics
11%
Climate
10%
Latvian
9%
State
9%
Holistic Approach
9%
Environmental Quality
9%
Dynamic Modeling
9%
Biogas
9%
Complexity
9%
Energy Source
9%
Statistical Inference
9%
Benchmarking
9%
Technology
9%
Practice
9%
Ecosystems
8%
Change
6%
Animals
6%
Carrying Capacity
6%
Efficiency
6%
Production
6%
Novels
6%
Economics
5%