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R. Johnson
educator | open source, OER advocate | paleo nerd | builder
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R. Johnson Oct 3
We pump too much out of the ground--and that's killing our | | :
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R. Johnson Sep 23
Stellarium Web Online Star Map | | :
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R. Johnson Sep 22
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R. Johnson Sep 20
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R. Johnson Sep 15
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R. Johnson Sep 15
We're Barely Listening to the U.S.Most Dangerous | :
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R. Johnson Aug 31
Natural Resource Atlas: Northeast Region | | :
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R. Johnson Aug 25
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R. Johnson Aug 25
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R. Johnson Aug 25
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R. Johnson Aug 16
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R. Johnson Aug 16
2 Degrees C: Beyond the Limit | | :
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R. Johnson Aug 15
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R. Johnson Aug 15
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R. Johnson Aug 14
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R. Johnson Aug 12
and Public Lands: Access, permits, and potential land use conflicts | |
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R. Johnson Aug 9
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R. Johnson Aug 8
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R. Johnson Aug 5
What Will Happen When Earth's Plates Stop? | | :
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R. Johnson Aug 2
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