Why is california sinking




















And just across from Sanchez's house, a cautionary tale: historic Allensworth. Driving around the small community composed of several homes, a schoolhouse, a church, and a few other simple structures, one might easily get the idea that you were visiting a ghost town.

Oliveira uses her key to open the door of a white house. This was his house, at the centre of the town he founded. In the early s it was a thriving African-American community. By the s it became an empty tourist attraction. One of the reasons this town was eventually abandoned, according to Oliveira: arsenic.

She points to a row of trees several hundred metres away. Now, even less remains of the lake than of historic Allensworth. So much water was diverted for agricultural use, the lake vanished. And a new problem emerged. But with more farmers using the water and the water table not being replenished, she says, "the concentrations [of arsenic] were going to get higher.

And that's what eventually happened…. The community faded. Its wells were deemed unsafe. Historic Allensworth provides a dramatic lesson, but it's one California has been slow to learn. That is mainly due to a groundwater management system that has replenished aquifers in recent years, a process that causes uplift. The map indicates one bit of positive news for Los Angeles: uplift along parts of the coast makes much of the city and its coastal suburbs less exposed to flooding hazards caused by increased sea level rise than other major coastal cities.

This picture of vertical land motion highlights the sea level rise planning and mitigation challenges that communities in many parts of the state face. Story by Adam Voiland. View this area in EO Explorer. Millions of people in the state live in low-lying coastal areas where land subsidence is exacerbating the risks of sea level rise. Image of the Day Land Remote Sensing. Image of the Day Water. The acceleration has been driven mainly by increased ice melting in Greenland and Antarctica, and it has the potential to double the total sea level rise projected by One-third of the majority Hispanic population here now lives in poverty.

The three movie theaters that once brought life to the town have all closed their doors. On this summer afternoon, under a crushing heat wave, some people have stopped to chat under an enormous wall painting. It depicts a clear blue lake surrounded by snow-capped mountain peaks—for now, a distant dream.

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By using our site, you acknowledge that you have read and understand our Privacy Policy and Terms of Use. As might be expected, the largest degree of subsidence occurred in southern California where the drought struck the hardest. In some places, the land sunk by nearly 30 feet. California's Department of Water Resources commissioned NASA's Jet Propulsion Laboratory to collect and analyze satellite data during the state's most recent drought, resulting in an initial report in , and subsequent updates.



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