Here are a few updates and extensions to earlier posts on blog.bioethics.net:

Attention, Planet Destroying Carnivores
Back in August, Kelly wrote about a report examining the effect of livestock production on greenhouse gas emissions. This week in Slate Brendan I. Koerner takes up the question of whether veganism is the most earth-friendly of diets. The answer’s a little more complicated than it might at first seem.

Should you have the tools to hack your brain?
In September we passed along a link to an article about the wariness of some scientists to the marketing of games that use brain-computer interfaces. Recently on the Neurophilosophy blog there was an item about how a lab at Keio University in Japan has developed a brain-computer interface that allows people to control the movements of an avatar in Second Life. There’s video of the interface in action, too.