Subject
agriculture
carbon dioxide
carbon dioxide production
1
climate
1
climate protection
1
climatic change
1
climatic effect
1
climatic impact
1
energy supply
1
food
1
global aspect
1
global change
1
global warming
1
green energy
1
greenhouse gas
1
health
1
human
1
human ecology
1
impact test
1
nutrition
1
renewable energy
1
sustainability
1
sustainable agriculture
1
sustainable development
1
sustainable use
1