Iceland. 
Maybe?
~snip~
Professor of physical chemistry from the Altay State University Vladislav Batenkov thinks that traces of the Tunguska meteorite should not have been searched for not directly under the meteorite’s course, but rather in the opposite direction.
Professor Batenkov graduated from the Chemistry Department of Tomsk State University; he currently deals with transistor electrochemistry. He has published several substantial monographs. Vladislav Batenkov is the creator of 14 inventions. The professor said in an interview to the newspaper Altayskaya Pravda: “The mystery of the Tunguska meteorite can be solved with the help of the physicochemical properties of water. The explanation is based upon water’s ability to decompose in oxygen and hydrogen at temperatures of over 1000 degrees centigrade. At the temperature of 5000 degrees centigrade, the decomposition occurs with detonation. When the temperature of the oxygen and hydrogen (the detonating mixture) drops below 1000 degrees centigrade, water is generated again together with the detonation.
The rest of the article goes on to explain his hypothesis. Compelling reading.
Interesting, no?
Iceland.
Maybe?
'......They report in the June 3 Science that the spatial pattern of lake disappearance suggests that the lakes drained away when the permafrost below them thawed, allowing the lake water to seep down into the groundwater. However, the team also found that lakes in northwestern Siberia actually grew by 12 percent, and 50 new lakes formed. Both of the rapid changes are due to warming, they say, and if the warming trend continues, the northern lakes will eventually shrink as well. “These two processes are similar, in that we’re witnessing permafrost degradation in both regions,” says co-author Larry Hinzman, a hydrologist at the University of Alaska in Fairbanks, who in previous studies documented shrinking lakes in southern Alaska. “In the warmer, southern areas, we get groundwater infiltration, but in the northern areas, where the permafrost is thicker and colder, it’s going to take much, much longer for that to occur. So instead of seeing lakes shrinking there, we’re seeing lakes growing.” That finding is consistent with the second study, which focused on a set of unusually oriented, rapidly growing lakes in northern Alaska, an area of continuous permafrost. Jon Pelletier, a geomorphologist at the University of Arizona in Tucson, reports in the June 30 Journal of Geophysical Research — Earth Surface that the odd alignment of the lakes is caused not by wind direction but by permafrost melting faster at the downhill end of the lake, which has shallower banks.....'