The annual migration of the American shad just got a helping hand from Philadelphia, the city that sees the unsung, bony fish as a symbol of hope for its formerly polluted waterways.
Posts Tagged ‘ecosystems’
Geologists Slip the Grand Canyon a Laxative
For those people thinking of kayaking on the Colorado River on this lovely afternoon, you might want to reconsider—unless, say, Iron Man was kind enough to lend you his suit. If you are somehow reading this blog post while paddling down the river, look out for the 41,000 cubic feet of water rushing your way every second—three to four times the normal flow. The USGS and the Bureau of Reclamation have opened Glen Canyon Dam’s four jet tubes and are increasing the flow of water through the Colorado River over the next 60 hours.
