The Intergovernmental Panel on Climate Change has collated ten variables that all show that the Earth has been warming over the past century. What factors in addition to temperature also indicate that the Earth has been warming over the past century?

Sea ice has been melting

Snow cover is decreasing

Sea level is rising

Explanation:

When the temperature of an area gets higher due to global warming, there is a delay in the formation of ice during the fall and winter seasons and the formed ice seem to melt faster during the next spring season when it sets in.

The issues of rising sea levels found in some areas of the world have been attributed to two factors, all related to global warming. The water from the melting ice gets added onto the existing water bodies, making it grow higher and the expansion of the seawater happens due to the rising atmospheric temperature.

The rising temperature reduces the time now spends on the ground and the high temperatures have also contributed to decrease in snow and ice cover.