The effects of the melting polar ice caps may one day be felt well beyond the poles, though. As the polar ice caps shrink, sea levels begin to rise, creating serious problems for coastal areas around the globe. Fortunately, we can do our part to slow down and prevent the environmental changes causing the polar ice caps to melt.
Paabo and colleagues used a new method for sequencing ancient, degraded genetic material to put together the 400,000-year-old specimen's mitochondrial genome. It is the oldest DNA ever found outside permafrost conditions -- in other words, it was not permanently frozen.
Haplogroup U5 Edit. Among the oldest mtDNA haplogroups found in European remains of Homo sapiens is U5. The age of U5 is estimated at 50,000 but could be as old as 60,500 years. Approximately 11% of total Europeans and 10% of European-Americans are in haplogroup U5.aplogroup U5 Edit. Among the oldest mtDNA haplogroups found in European remains of Homo sapiens is U5. The age of U5 is estimated at 50,000 but could be as old as 60,500 years. Approximately 11% of total Europeans and 10% of European-Americans are in haplogroup U5.