The field of environmental health is broad, deep and varied.  It intersects with many other fields and can be explored in several different ways:

Scale – Many organizations and foundations take on work by locale.  Many organizations are focused on local work, others work at a regional, state, national or global level. 

Strategy -  Much of the work in this field is organized around social change strategies.  These include advocacy and organizing to change policies, pass legislation, change regulations, or press for enforcement of laws and regulations.  Market-based strategies build pressure on companies or industrial sectors, encourage business to shift their practices and products, and/or build alliances with business and industry.  Community-empowerment strategies support organizing and capacity-building to enable communities (whether geographic or "communities of identity") to address their own environmental health concerns.

Issue – Work on health and environment spans a wide range of issues, including:  on specific contaminants or sources of pollution; to protect particular populations, like children, low-income communities, workers, or communities of color; and in areas such as sustainable agriculture; smart growth and healthy building; climate change and energy; community health; environmental justice; chemicals and health; and green building.