Weekly environmental news, Aug 18-24

Experts call for change in global water management [AFP]
Ozone layer on the mend but recovery delayed [Reuters]
U.S. wind energy on the rise [Business Week]
Food, biofuels could worsen water shortages [Reuters]
Squid, jellyfish point to ocean upsets? [Reuters]
Runners' collapse in Hong Kong due to smog [AFP]
China's urban water supplies face severe test [Reuters]
Biofuels may strain U.N. world hunger goals [Reuters]