boundaries

UK starts study on using human DNA in animals

Headlines from the Associated Press  Mon, 11/09/2009 - 18:33

LONDON (AP) -- British scientists begin a new study on Tuesday to consider how human DNA is used in animal experiments and to determine what the boundaries of such controversial science might be....


 

How Much Human Activity Can Earth Handle?

TIME: Top Science and Health Stories  Wed, 09/23/2009 - 11:55

A new study highlights nine planetary boundaries that, if passed, could lead to catastrophic change -- and an inhospitable Earth for humans