What is cool climate wine?

The term is still indefinite.
For the sake of CCWA competition we accept all the wines produced in EU climate zones A and B plus Switzerland, and will be happy to welcome wines from all other wine regions, subregions or districts that may prove to fulfill at least one of the following demands: 
- less than 1389 GDD in ⁰C units or less than 2500 GDD in ⁰F units
(region 1b and 1a in Winkler Index)
- max. growing season avarage temperature of 16⁰C or 61⁰F

If you're there,

don't check your GDD

Europe

1. Germany 
2. Great Britain 
3. Baltic countries
4. Neatherlands
5. Belgium
6. Luxemburg
7. Czech Republic
8. Slovakia
9. Austria
10. Switzerland
11. Liechtenstein
12. France (only Loire, Champagne, Alsace, Burgundy, Savoie)
13. Hungary (only Tokaj)
14. Romania (only Transylvania)
15. Slovenia (only Posavska, Podravska)
16. Croatia (only Uplands)

New World

15. Argentina (only Rio Negro)
16. Chile (only Lake District)
17. US (only Washington, Oregon)
18. Canada
19. Australia (only Tasmania)
20. New Zealand (only Marlborough, Central Otago)