Kaja Rahu, who defended her doctoral thesis at UT, found in her thesis that a quarter of a century after the Chernobyl catastrophe there are no proof that the small amounts of radiations obtained during the cleaning works have increased the morbidity or mortality rates of the veterans.
In cooperation with foreign partners, the scientist of UT counted all the lakes in the world and found out that there number of lakes is three times smaller than so far thought based on the statistical assessments. However, the total surface area of the lakes is larger than it was thought.