environmental
black
cartoon
clip art
concept
conservation
crisis
crude
design
dirty
disaster
earth
ecology
energy industry
environment
extraction
finite resource
gasoline
global
globe
graphic
illustration
industrial
isolated
liquid
natural resource
nature
nonrenewable
oil
oil depletion
petroleum
planet
pollution
problem
pump
resource
scarcity
spill
sustainability
toxic
waste
white
world