translate English to French: Data collected since 1970s show that the Canadian Arctic has experienced similar decreases in ice extent, although there is considerable regional variation.
Les donnÃ©es recueillies depuis les annÃ©es 1970 montrent que l'Arctique canadien a connu des baisses analogues de l'extension des glaces, mÃªme si les Ã©carts rÃ©gionaux sont considÃ©rables.