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1. Global climate change could be damaging valuable archaeological history.

2. Scythian warlords (called "kurgans") are the names of those suspected to be preserved near Siberia.

3. Human remains can be preserved by permafrost.

4. Harvard scientists are examining the reasons for the mummy degradation.

5. A humid climate triggers bacteria naturally found on skin, which causes the mummies to deteriorate.

6. High altitude desert environments are ill-suited to current increases in precipitation.

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