Back in 2010, when I was Mayor of Ventura, the city installed parking meters downtown for the first time in 40 years. Not for every parking space, of course. The meters covered only 300 or so prime spaces on Main Street and a few popular side streets. Thousands of other downtown spaces � both onstreet and off � remained free.

 The problem we were trying to solve was a pretty typical one: Demand was so high for the prime spaces that people were cruising up and down Main Street, causing a constant traffic jam, in search of a space. The spaces themselves were hogged by merchants and their employees. It was hard to enforce the existing two-hour time limit, and the parkers gamed the system with such familiar tricks as wiping the meter maids' chalk of their tires. Meanwhile, a half-block away, parking lots and a parking garage sat empty.

Mayor Eric Garcetti of Los Angeles announced his new "Sustainable City pLAn," a far-reaching decree that seeks to make Los Angeles sustainable in ways ranging from water to solar energy to waste. Among other things, the plan seeks to reduce daily Vehicle Miles Traveled by 5 percent by 2025, to implement the Vision Zero policy to reduce traffic fatalities, to have zero days in which air pollution reaches unhealthy levels by 2025, and to complete 32 miles of Los Angeles River public access by 2025. The plan defines sustainability broadly, to include not only ecological goals but also broad goals of social and economic sustainability. >>read more

Los Angeles' housing crisis has been building for long enough that just about anyone who rents an apartment here could have told you about it years ago. But it wasn't until last summer that UCLA released a report confirming what many of us already know: as a function of average rents (high) and average incomes (low, especially compared to those in San Francisco and New York) Los Angeles is the least-affordable rental market in the country. 

Circulating around the blogosphere now is a single graph that illustrates why: >>read more

Until the mid-2000s, the South Park neighborhood of downtown Los Angeles had exactly one high-rise tower: the looming, vaguely Stalinist Transamerica Building (now the AT&T Center). It most famously supplied the rooftop where Guns 'n Roses shot the video for "Don't Cry." The area—which occupies the southern portion of downtown Los Angeles, between the Financial District and Interstate 10—otherwise consisted of dilapidated retail, low-rent residential buildings and acres of surface parking lots. 

The area was avoided by businesses, developers, and rock stars alike. 

Today, the AT&T Center is but the tallest tree in a rapidly growing forest. No fewer than 20 high-rise and medium-rise projects are under construction or in development in the roughly 40 square-block area. At least that many projects are in earlier stages of development. 

It is, say planners, the next phase in the resurgence of downtown Los Angeles. 

Currently on display at the Annenberg Space for Photography in Los Angeles, Sink or Swim: Designing for a Sea Change is an arresting exhibition depicting consequences of, and solutions to, rising sea levels. It includes photographs by artists and journalists of disasters, like Hurricane Katrina and the Japanese tsunami, and responses, like floating schools in Bangladesh, sculpted sea walls in the Netherlands, and the restoration of the Malibu Lagoon, just a few miles away. Sink or Swim celebrates, and issues a charge to engineers, designers, and public officials to acknowledge rising seas and start embracing ways to build resiliency.

Sink or Swim was curated by Frances Anderton, known locally for hosting KCRW public radio's DnA: Design & Architecture show. She spoke with CP&DR's Josh Stephens.