Subarashii Sekai Ryokou: Alaska no Tabi "Daigo Hyougaki"
Japanese title: すばらしい世界旅行　アラスカの旅“第五氷河期”
Alternative titles: Subarashii Sekai Ryoko: Alaska no Tabi: Oaigo Hyogaki, Wonderful World Travel: Alaskan Journey: Fifth Ice Age
Type: Special
Source: Unknown
Episodes: 2
Status: Finished Airing
Aired: Jan 29, 1967 to Feb 5, 1967
Duration: 30 min per ep
Rating: PG - Children
Producers: Nippon Television Network
Genres: Adventure, Sci-Fi

In the near future, Earth is engulfed in a new ice age as snow falls ceaselessly in summer and glaciers advance with uncharacteristic speed. In this SF spinoff of the live-action Wonderful World Travel series, humanity must decide whether to use science to fight the ice or to adapt to it. 

(Source: Anime Encyclopedia)