British environmentalist David de Rothschild, author of Live Earth Global Warming Survival Handbook, met with members of the San Francisco Conservation Corps on Wednesday to talk about "Plastiki," his seacraft constructed almost entirely of plastic (except for the masts), which he'll use in an 11,000 mile voyage to Australia.

The boat,. which will include 12,000 soda bottles, is part of an "effort to raise awareness of the recycling of plastic bottles, which he says are a symbol of global waste."

SFCC members donated plastic bottles for the boat. Here are some images from yesterday's construction and meet & greet.

Follow the jump to watch a small clip on the Plastiki's expedition.