This souvenir sheet comes from Estonia and it reflects perfectly the effects of Global Warming on Glaciers.

This sheet was issued on January 15, 2009.

Designed by Lembit Lõhmus is was printed offset, perforated 13 X 12.75 and 75,000 copies have been issued.

The average global temperature has risen by more than 0.5°C during the past one and a half centuries.

The frequency of extreme phenomena of climate – hurricanes, draughts, heavy rains and floods etc. has grown.

The global warming has become a worldwide environmental problem, but there have been vast differences of opinion on the role of human activity as one of the main cause of the process among scientists. Climate is an extremely complex, non-linear chaotic system with thousands of variables and influencers.