Region
Abqaiq
6
Afghanistan
1
Africa
18
Africa, Central
1
Africa, North
3
Africa, Sub-Saharan
3
Africa, West
2
Alabama
1
Alaska
69
Alberta
17
Algeria
2
Amazon River Region
5
America
3
Angola
2
Arab countries
14
Arabian Peninsula
1
Arctic Coast
2
Arctic Coast (Russia)
2
Arctic National Wildlife Refuge
11
Arctic National Wildlife Refuge (Alaska)
6
Arctic regions
3
Argentina
1
Asia
4
Asia, Central
2
Athabasca River
1
Athabasca River Watershed
1
Athabasca River Watershed (Alta.)
1
Athabasca Tar Sands
2
Athabasca Tar Sands (Alta.)
3
Azerbaijan
9
Bahia (State)
1
Bahlāʼ
2
Bahlāʼ (Oman)
2
Bahrain
1
Bakken Formation
1
Baku
2
Baku (Azerbaijan)
1
Baltic States
1
Barents Sea Region
1
Barrancabermeja
1
Belarus
1
Bolivia
2
Boston
1
Brazil
5
British Columbia
1
Bulgaria
1
Calgary
1
Calgary (Alta.)
1
California
14
California, Southern
3
more ...