Records show 85 per cent of the ice covering the 5,892m (15,092ft) mountain in 1912 had been lost by 2000.
Since 2000, 26 per cent of the ice that was left has now gone.
Although changes in cloudiness and rainfall play a part in the retreat of the ice, their roles are less important in recent decades, scientists claim.
Prof Lonnie Thompson, of Ohio University, said: 'The fact that so many glaciers throughout the tropics and subtropics are showing similar responses suggests an underlying common cause.'
The findings were published in the journal Proceedings of the National Academy of Sciences.
Kibo summit of Mt Kilimanjaro, Tanzania.

Scientists at the Ohio University predicted that the ice sheets of Mount Kilimanjaro, Africa's tallest mountain peak, will melt in the next twenty years due to global warming.

The ice that was present in 1912 gradually decreased by 85% by 2000, and by 2007 another 26% of the amount in 2000. This was the first time that the volume of the ice in Kilimanjaro was measured. The tests were conducted by Lonnie Thompson, a professor at Ohio University.

"The fact that so many glaciers throughout the tropics and subtropics are showing similar responses suggests an underlying common cause," Thompson said.

Change in cloudiness and weather could have also been factors in the retreat of the ice, especially in recent decades, scientists said. These findings were first published in the journal proceedings of United States National Academy of Sciences (NAS) on Monday.