| OLIGOCENE | Geologic epoch over 30 million years ago defined by global cooling, appearance of grasslands, decrea |
| NILE | River believed to be more than 30 million years old |
| MAIN | The ___ Squeeze (band whose cover of Michael Jackson's "Man in the Mirror" has over 30 million views on YouTube) |
| ABBA | Band whose "Gold: Greatest Hits" has sold over 30 million copies |
| AOL | It has over 30 million members |
| ICEAGE | Look at person of great wisdom announcing global cooling (3,3) |
| ORIBI | Small African antelope of grasslands and bush south of the Sahara which has a fawn-coloured coat (5) |
| ASSAMESE | Citizen of a state in north-east India (30,285 sq miles; pop about 30 million (8) |
| BANGLADESH | This Gulf of Bengal nation is threatened by global warming triggering floods both from the sea and f |
| AGES | Subdivisions of geologic epochs; or, periods of prehistoric time (4) |
| NUCLEARWINTER | Hypothesised global cooling following large-scale bombing producing soot blocking sunlight (13) |
| MEADOWS | Tracts of grasslands used for hay or left for wild flowers (7) |
| ADELE | Artist behind the best-selling album of the 21st century (30+ million units) |
| ASSAM | State in north-east India (30,289 sq miles; pop about 30 million) (5) |
| GRACEKELLY | Actress whose 1956 weddng was watched by more than 30 million television viewers (5,5) |
| GONEWITHTHEWIND | Only novel written by Margaret Mitchell, published in 1936, with 30 million copies sold (4,4,3,4) |
| AUTUMN | Fall of a corporation described by global organisation |
| EOCENE | Certain geologic epoch |
| ICECAP | I see Europe limit what's threatened by global warming (3,3) |
| SNIPE | Forming in wisps and drumming in aerial courtship displays, a wading bird of grasslands and marshes related to woodcocks, curlews and sandpipers (5) |
