But he too said the political winds were changing as a result of the recent thaw, which he expected to bring in more US tourists and improve the Cuban economy.
The positive side of this is that the big thaw, which turns streets to slush, has yet to fully set in.
Then the water will freeze and thaw, which is how the asphalt breaks up.
The Canada visit is part of a wider North Korean thaw, which includes the resumption of food aid by Japan and the establishment of diplomatic ties with Italy.
The weather should remain dry at least, the Met Office said, but snow will be slow to thaw, which could mean tricky driving conditions.
In 1958 my father, Robert Rauschenberg, painted Thaw, which he later sold to an art collector for $900.
As temperatures keep getting warmer, more permafrost will thaw, which theoretically means more ancient viruses will continue to be exposed.
Freeze thaw, which induces only necrosis, was sufficient, however, to induce fibrinogen citrullination.
In the Thaw piece, which blends drawing and painting, trees twist with an almost pathological energy, and colors seethe along the horizon like flames.
Of special interest is the Cooper Room, with artifacts from the life of James Fenimore Cooper, and the American Indian Wing housing the Thaw Collection, which opened in 1995 and offers a broad overview of North American Indian art.
