land pollution?

Question

i need to know about wat year did radioactive things start and when did the kyoto agreement begin

Answer 1

Radioactivity has been around since the earth has been around. However in the 1800's Madame Curie began experimenting with Isotopes of uranium (I think) and is credited with the discovery that led the way for the X-Ray.

As for the Kyoto Agreement... 1997 was the first of many summits that led to the signing of the Kyoto protocol in 2005 However the United States and at last check Australia have not signed. check out http://search.yahoo.com/search?fr=slv2-msgr&ei=UTF-8&p=Kyoto%20protocal for more information