UN report: Aging dams pose growing threat

UN report: Aging dams pose growing threat

By 2050, most people on Earth will live downstream of tens of thousands of large dams built in the 20th century, many of them already operating at or beyond their design life, according to a UN University analysis. The report, “Aging water infrastructure: An emerging...
GreenGen pumped storage holds virtual open house

GreenGen pumped storage holds virtual open house

As we’ve discussed in the previous newsletter, a private company called GreenGen Storage LLC is proposing to build a pumped-storage hydroelectric project on the Mokelumne River. It would use existing PG&E dams and reservoirs, and possibly expand some of them. The...