The chart above from the Canadian government Ice Service depicts the extend
of ice coverage in the Arctic waters north of Canada on a week - to - week basis from May to late November in 2007.
The spatially aggregated trend of temperature for this latter period is small but positive, while the corresponding
trend of ice coverage is small but negative.
When I look at the Great Lakes Ice coverage using Environment Canada Ice Service, I see regions of ice along the shores and bays and waters between islands, 0.5 %
of ice coverage so far.
Researchers say this back - from - the - dead trick has implications for how ecosystems recover from the planet's cyclic long
periods of ice coverage.