In the beginning this national organization focused primarily on conserving , protecting and restoring the natural environment .
Later organization 's member student environmental organizations took on a broader definition of the environment that includes racism , sexism , militarism , heterosexism , economic justice , and animal rights .
In the beginning this national organization focused primarily on conserving , protecting and restoring the natural environment , but later its member student environmental organizations took on a broader definition of the environment that includes racism , sexism , militarism , heterosexism , economic justice , and animal rights .