Earth Notes

Earth Notes: Tracking El Nino

Dec 23, 2015
NOAA

Every few years the equatorial Pacific Ocean warms, producing the phenomenon known as El Nino and causing a whole raft of environmental impacts around much of the world. The pattern was named by South American fishermen in the 1600's who noticed a change in fishing conditions around the Christmas season.


Wikipedia

For decades now, puzzled birdwatchers in the southern tier of states have noticed that in some years, birds from Canada's boreal forests turn up for unexpected winter sunshine vacations in vast numbers.

We tend to think that rivers flow in a consistent direction: downstream. But over geologic time “downstream” can change. That’s why a place like Unaweep Canyon in western Colorado is such a good place to think about long-term time travel.

Courtesy

When presidents approach the end of a term, an otherwise little-known federal law often hits the headlines. It’s the Antiquities Act, passed by Congress in 1906.

Courtesy

After more than 15 years of negotiations, the state of Utah and the National Park Service signed a water rights agreement this spring for Arches National Park.

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