Earth & Environmental Sciences
alternative energy
14%
anaerobic digestion
6%
bioenergy
100%
biogas
12%
biomass
10%
biomass energy
7%
carbon
6%
carbon dioxide
6%
carbon sequestration
19%
climate change
12%
climate change impact
11%
climate change mitigation
13%
coffee
6%
consumption
5%
demand
8%
economics
10%
electricity
7%
electricity supply
7%
emission reduction
5%
energy
18%
energy balance
5%
energy demand
9%
environmental economics
8%
environmental performance
9%
food
6%
food security
6%
fossil fuel
5%
greenhouse gas
19%
greenhouse gas emissions
12%
income
6%
life cycle
5%
mitigation
5%
policy
11%
policy development
8%
policy instrument
6%
political economy
7%
removal
6%
rice
9%
savings
5%
stakeholder
9%
straw
11%
subtropical region
6%
sustainability
15%
Sustainable Development Goal
7%
uncertainty analysis
5%
wheat
5%
wood waste
8%
Engineering & Materials Science
Anaerobic digestion
22%
Bioelectric phenomena
10%
Biogas
20%
Biomass
20%
Carbon
6%
Carbon capture
12%
Carbon dioxide
8%
Climate change
31%
Coffee
7%
Crops
5%
Economics
25%
Electricity
16%
Energy balance
11%
Environmental impact
8%
Environmental impact assessments
7%
Feedstocks
20%
Fossil fuels
8%
Fruits
6%
Gas emissions
14%
Global warming
6%
Greenhouse gases
34%
Land use
7%
Life cycle
6%
Pectins
12%
Polyphenols
8%
Profitability
5%
Renewable energy resources
16%
Straw
20%
Sugars
6%
Supply chains
13%
Sustainable development
32%
Uncertainty
8%
Uncertainty analysis
6%
Wood
8%
Agriculture & Biology
bioelectricity
8%
bioenergy
67%
biogas
11%
biomass
6%
carbon
7%
carbon dioxide
8%
case studies
13%
climate change
12%
electricity
9%
energy
14%
energy policy
9%
greenhouse gas emissions
9%
greenhouse gases
22%
income
6%
life cycle assessment
6%
pellets
5%
Philippines
5%
radiative forcing
5%
renewable energy sources
15%
research policy
8%
rice
6%
rice straw
11%
Sub-Saharan Africa
5%
subtropics
5%
supply chain
11%
sustainable development
8%
uncertainty
8%
uncertainty analysis
8%
zero emissions
9%