River
Threat
1
Colorado
277 miles in
Grand Canyon
Climate crisis and outdated
water management
2
Ohio
Pollution and climate crisis
3
Pearl
Dredging and dam
construction
4
Snake
Four federal dams
5
Clark Fork
Pulp mill pollution
6
Eel
Dams
7
Lehigh
Poorly planned
development
8
Chilkat and
Klehini
Mining
9
Rio
Gallinas
Climate crisis, poor forest
and watershed management
10
Okefenokee
swamp
Mining
River
Threat
1
Colorado
277 miles in
Grand Canyon
Climate crisis and outdated
water management
2
Ohio
Pollution and climate crisis
3
Pearl
Dredging and dam construction
4
Snake
Four federal dams
5
Clark Fork
Pulp mill pollution
6
Eel
Dams
7
Lehigh
Poorly planned development
8
Chilkat and
Klehini
Mining
9
Rio
Gallinas
Climate crisis, poor forest
and watershed management
10
Okefenokee
swamp
Mining
River
Threat
1
6
Colorado
277 miles in
Grand Canyon
Eel
Climate crisis and
outdated water
management
Dams
2
7
Lehigh
Ohio
Pollution and climate
crisis
Poorly planned
development
3
8
Pearl
Chilkat and
Klehini
Dredging and dam
construction
Mining
4
9
Snake
Rio
Gallinas
Four federal dams
Climate crisis, poor
forest and watershed
management
5
10
Clark Fork
Okefenokee
swamp
Pulp mill pollution
Mining
River
Threat
1
6
Colorado
277 miles in
Grand Canyon
Eel
Climate crisis and
outdated water
management
Dams
2
7
Lehigh
Ohio
Pollution and climate crisis
Poorly planned
development
3
8
Pearl
Chilkat and
Klehini
Dredging and dam
construction
Mining
4
9
Snake
Rio
Gallinas
Four federal dams
Climate crisis, poor
forest and watershed
management
5
10
Clark Fork
Okefenokee
swamp
Pulp mill pollution
Mining