northwest territories
(
42
)
environmental impact
(
35
)
pnw
(
31
)
environmental aspects
(
28
)
marine
(
26
)
beaufort sea
(
24
)
canada
(
18
)
oil and gas industry
(
15
)
freshwater
(
14
)
mackenzie r
(
14
)
environmental impact analysis
(
13
)
oil wells
(
13
)
artificial islands
(
12
)
delphinapterus leucas
(
12
)
baseline studies
(
11
)
mackenzie bay
(
10
)
mackenzie delta
(
9
)
mackenzie estuary
(
9
)
marine mammals
(
9
)
benthos
(
8
)
environmental studies
(
7
)
oil and gas
(
7
)
oil spills
(
7
)
constructing
(
6
)
environmental impact statements
(
6
)
fishery resources
(
6
)
habitat
(
6
)
offshore
(
6
)
oil and gas exploration
(
6
)
plankton
(
6
)