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easter island
how did easter islanders survive without wells or streams?
ancient people did stuff
geology
groundwater
hydrogeology
hydrology
moai
polynesia
polynesians
rapa nui
science
technology
info
map
source
most groundwater is ancient but contains surprising human fingerprint
groundwater
hydrogeology
scientific method
technology
water quality
water supply
source
more evidence for (and against) groundwater contamination by shale gas
fracking
groundwater
hydrogeology
marcellus
natural gas
scientific method
technology
source
epa steps away from fracking investigation in wyoming
wyoming
epa
fracking
groundwater
hydrogeology
scientific method
technology
source
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