Columbia subject headings:
Harvard subject headings:
Climatic changes--Economic aspects--Congresses.
Depressions--Environmental aspects--Congresses.
Economic development--Environmental aspects--Congresses
Industries--Environmental aspects--Congresses.
Sustainable development--Congresses
Work environment--Congresses
Princeton subject headings:
Business enterprises--Environmental aspects--Germany.
Climate change mitigation--Germany.
Climatic changes--Economic aspects--Germany.
Environmental protection--Germany.
Industrial management--Environmental aspects--Germany.
Steel industry and trade--Environmental aspects--Germany.
Sustainable development--Germany.