Turner Prize-nominee Catherine Yass' lens-based artworks at London's Alison Jacques Gallery contemplate the impact of human construction on natural ecology. The centerpiece of the show is Lock, a two-screen film projected at opposite ends of the gallery. One screen shows the stern view, the other the aft of a ship floating in a massive transport lock as it passes through the Three Gorges Dam on China's Yangtze River. Lock's nonlinear narrative technique defies any set structure, playing instead on the mounting tensions of impending environmental catastrophe. In addition to displacing over one million Chinese citizens due to rising water levels, the dam is also responsible for deteriorating soil and aquatic life. Accompanying the film is a series of enchanting light-box photographs depicting the lock against the backdrop of the epic Yangtze.

-Sara Raza