There's Gold In Them Thar Sewage Pipes, Swiss Researchers Say
Each year, more than $3 million in gold and silver wind up in Swiss wastewater, scientists found. But in most cases it doesn't make economic sense to extract and recycle the metals.
Đọc tiếp trên NPR
October 12, 2017 at 12:42AM
Environment
NPR News: There's Gold In Them Thar Sewage Pipes, Swiss Researchers Say
Posted by Unknown |
00:49
Related Posts:
NPR News: 'An Inconvenient Sequel' Is An Effective, Cautiously Optimistic, 'I Told You So''An Inconvenient Sequel' Is An Effective, Cautiously Optimistic, 'I Told You So' In 2006, Al Gore issued a forceful warning about the threat of climat… Read More
NPR News: Mapping Coastal Flood Risk Lags Behind Sea Level RiseMapping Coastal Flood Risk Lags Behind Sea Level Rise Federal maps help determine who on the coast must buy flood insurance, but many don't include th… Read More
NPR News: Repeal-And-Replace Effort In Senate Still Dominated By ConfusionRepeal-And-Replace Effort In Senate Still Dominated By Confusion Four Republican senators say they will vote yes on a so-called "skinny repeal" bill o… Read More
NPR News: Repeal-And-Replace Effort In Senate Still Dominated By ConfusionRepeal-And-Replace Effort In Senate Still Dominated By Confusion Four Republican senators say they will vote yes on a so-called "skinny repeal" bill o… Read More
NPR News: 'An Inconvenient Sequel' Is An Effective, Cautiously Optimistic, 'I Told You So''An Inconvenient Sequel' Is An Effective, Cautiously Optimistic, 'I Told You So' In 2006, Al Gore issued a forceful warning about the threat of climat… Read More
0 nhận xét:
Đăng nhận xét