K 10 svn:author V 6 pepeto K 8 svn:date V 27 2010-02-07T21:19:46.272778Z K 7 svn:log V 243 After a global warming or a nuclear winter, never change the city center terrain to a terrain which doesn't support cities (e.g. ice or ocean). Reported by bernd.jendrissek@gmail.com Patch by Matthias Pfafferodt (syntron) See gna bug #15258 END